feat(core): SLIP-24 payment requests for Solana

diff --git a/common/protob/messages-solana.proto b/common/protob/messages-solana.proto
index 4ab286b6..986eb513 100644
--- a/common/protob/messages-solana.proto
+++ b/common/protob/messages-solana.proto
@@ -1,6 +1,9 @@
 syntax = "proto2";
 package hw.trezor.messages.solana;
 
+import "messages-common.proto";
+import "options.proto";
+
 /**
  * Request: Ask device for public key corresponding to address_n path
  * @start
@@ -69,6 +72,7 @@ message SolanaSignTx {
     repeated uint32 address_n = 1;      // BIP-32 path to derive the key to sign with
     required bytes serialized_tx = 2;   // serialized tx to be signed
     optional SolanaTxAdditionalInfo additional_info = 3;
+    optional common.PaymentRequest payment_req = 4 [(experimental_field)=true]; // SLIP-24 payment request
 }
 
 /**
diff --git a/common/tests/fixtures/solana/sign_tx.payment_request.json b/common/tests/fixtures/solana/sign_tx.payment_request.json
new file mode 100644
index 00000000..df2e9723
--- /dev/null
+++ b/common/tests/fixtures/solana/sign_tx.payment_request.json
@@ -0,0 +1,128 @@
+{
+  "setup": {
+    "mnemonic": "all all all all all all all all all all all all",
+    "passphrase": ""
+  },
+  "tests": [
+    {
+      "skip_models": ["t2"],
+      "experimental": true,
+      "description": "Payment request",
+      "parameters": {
+        "payment_req": true,
+        "address": "m/44'/501'/0'/0'",
+        "construct": {
+          "version": null,
+          "header": {
+            "signers": 1,
+            "readonly_signers": 0,
+            "readonly_non_signers": 1
+          },
+          "accounts": [
+            "14CCvQzQzHCVgZM3j9soPnXuJXh1RmCfwLVUcdfbZVBS",
+            "ETxHeBBcuw9Yu4dGuP3oXrD12V5RECvmi8ogQ9PkjyVF",
+            "FUqrjRRtF1LiptdFqaFxipE8R3YfCE4k56xwm5n1piqX",
+            "TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA"
+          ],
+          "blockhash": "2p4rYZAaFfV5Uk5ugdG5KPNty9Uda9B3b4gWB8qnNqak",
+          "instructions": [
+            {
+              "program_index": 3,
+              "accounts": {
+                "source_account": 2,
+                "token_mint": 0,
+                "destination_account": 0,
+                "owner": 0,
+                "multisig_signers": []
+              },
+              "data": {
+                "instruction_id": 12,
+                "amount": 200,
+                "decimals": 2
+              }
+            }
+          ],
+          "luts": []
+        },
+        "additional_info": {
+          "token": {
+            "symbol": "FAKE",
+            "mint": "14CCvQzQzHCVgZM3j9soPnXuJXh1RmCfwLVUcdfbZVBS",
+            "name": "Fake token"
+          }
+        }
+      },
+      "result": {
+        "expected_signature": "789bcc492ece698bc832d9d84c789de423763a6b331cf3894d1cc9363b41c3a187d1bbcdd2ca6d0f6702fc98a0484b5fb86e2bd4a2b3d36d89f70f43c9f9080d"
+      }
+    },
+    {
+      "skip_models": ["t2"],
+      "experimental": true,
+      "description": "Payment request - multiple transfers",
+      "parameters": {
+        "payment_req": true,
+        "address": "m/44'/501'/0'/0'",
+        "construct": {
+          "version": null,
+          "header": {
+            "signers": 1,
+            "readonly_signers": 0,
+            "readonly_non_signers": 1
+          },
+          "accounts": [
+            "14CCvQzQzHCVgZM3j9soPnXuJXh1RmCfwLVUcdfbZVBS",
+            "ETxHeBBcuw9Yu4dGuP3oXrD12V5RECvmi8ogQ9PkjyVF",
+            "FUqrjRRtF1LiptdFqaFxipE8R3YfCE4k56xwm5n1piqX",
+            "TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA"
+          ],
+          "blockhash": "2p4rYZAaFfV5Uk5ugdG5KPNty9Uda9B3b4gWB8qnNqak",
+          "instructions": [
+            {
+              "program_index": 3,
+              "accounts": {
+                "source_account": 2,
+                "token_mint": 0,
+                "destination_account": 0,
+                "owner": 0,
+                "multisig_signers": []
+              },
+              "data": {
+                "instruction_id": 12,
+                "amount": 100,
+                "decimals": 2
+              }
+            },
+            {
+              "program_index": 3,
+              "accounts": {
+                "source_account": 3,
+                "token_mint": 0,
+                "destination_account": 0,
+                "owner": 0,
+                "multisig_signers": []
+              },
+              "data": {
+                "instruction_id": 12,
+                "amount": 300,
+                "decimals": 2
+              }
+            }
+          ],
+          "luts": []
+        },
+        "additional_info": {
+          "token": {
+            "symbol": "FAKE",
+            "mint": "14CCvQzQzHCVgZM3j9soPnXuJXh1RmCfwLVUcdfbZVBS",
+            "name": "Fake token"
+          }
+        }
+      },
+      "result": {
+        "error_message": "Multiple transfers not supported"
+      }
+    }
+
+  ]
+}
diff --git a/core/src/apps/solana/layout.py b/core/src/apps/solana/layout.py
index 30665e4b..a1637297 100644
--- a/core/src/apps/solana/layout.py
+++ b/core/src/apps/solana/layout.py
@@ -1,6 +1,6 @@
 from typing import TYPE_CHECKING
 
-from trezor import TR
+from trezor import TR, wire
 from trezor.crypto import base58
 from trezor.enums import ButtonRequestType
 from trezor.strings import format_amount, format_amount_unit
@@ -21,7 +21,7 @@ from .types import AddressType
 if TYPE_CHECKING:
     from typing import Sequence
 
-    from trezor.messages import SolanaTokenInfo
+    from trezor.messages import PaymentRequest, SolanaTokenInfo
     from trezor.ui.layouts import PropertyType
 
     from .definitions import Definitions
@@ -525,3 +525,63 @@ async def confirm_transaction(
         fee_title=fee_title,
         items=fee_items,
     )
+
+
+async def confirm_payment_request(
+    provider_address: str,
+    address_n: list[int],
+    amount: int,
+    decimals: int,
+    token: SolanaTokenInfo,
+    fee: Fee,
+    verified_payment_request: PaymentRequest,
+) -> None:
+    from trezor.ui.layouts import confirm_payment_request
+
+    total_amount = format_amount_unit(format_amount(amount, decimals), token.symbol)
+
+    texts: list[tuple[str | None, str]] = []
+    refunds: list[tuple[str, str | None, str | None]] = []
+    trades: list[tuple[str, str, str, str | None, str | None]] = []
+    for memo in verified_payment_request.memos:
+        if memo.text_memo is not None:
+            texts.append((None, memo.text_memo.text))
+        elif memo.text_details_memo is not None:
+            texts.append((memo.text_details_memo.title, memo.text_details_memo.text))
+        elif memo.refund_memo:
+            refund_account_path = address_n_to_str(memo.refund_memo.address_n)
+            refunds.append((memo.refund_memo.address, None, refund_account_path))
+        elif memo.coin_purchase_memo:
+            coin_purchase_account_path = address_n_to_str(
+                memo.coin_purchase_memo.address_n
+            )
+            trades.append(
+                (
+                    f"-\u00A0{total_amount}",
+                    f"+\u00A0{memo.coin_purchase_memo.amount}",
+                    memo.coin_purchase_memo.address,
+                    None,
+                    coin_purchase_account_path,
+                )
+            )
+        else:
+            raise wire.DataError("Unrecognized memo type in payment request memo.")
+
+    account_path = address_n_to_str(address_n) if address_n else None
+    account_items = []
+    if account_path:
+        account_items.append((TR.address_details__derivation_path, account_path))
+
+    _, fee_str, fee_items = _fee_ui_info(fee)
+
+    await confirm_payment_request(
+        verified_payment_request.recipient_name,
+        provider_address,
+        texts,
+        refunds,
+        trades,
+        account_items,
+        fee_str,
+        fee_items,
+        None,
+    )
diff --git a/core/src/apps/solana/predefined_transaction.py b/core/src/apps/solana/predefined_transaction.py
index d3171900..3d29915e 100644
--- a/core/src/apps/solana/predefined_transaction.py
+++ b/core/src/apps/solana/predefined_transaction.py
@@ -1,6 +1,7 @@
 from typing import TYPE_CHECKING
 
 from trezor.crypto import base58
+from trezor.wire import ProcessError
 
 from .transaction import Transaction
 from .transaction.instructions import (
@@ -14,6 +15,8 @@ from .transaction.instructions import (
 if TYPE_CHECKING:
     from typing import Type
 
+    from trezor.messages import PaymentRequest
+
     from .transaction import Fee
     from .types import AdditionalTxInfo
 
@@ -122,9 +125,10 @@ async def try_confirm_token_transfer_transaction(
     signer_path: list[int],
     blockhash: bytes,
     additional_info: AdditionalTxInfo,
+    verified_payment_request: PaymentRequest | None,
 ) -> bool:
     from .definitions import unknown_token
-    from .layout import confirm_token_transfer
+    from .layout import confirm_payment_request, confirm_token_transfer
     from .token_account import try_get_token_account_base_address
 
     visible_instructions = transaction.get_visible_instructions()
@@ -159,16 +163,31 @@ async def try_confirm_token_transfer_transaction(
     is_unknown = token is None
     if is_unknown:
         token = unknown_token(token_mint)
-    await confirm_token_transfer(
-        token_account if base_address is None else base_address,
-        token_account,
-        token,
-        is_unknown,
-        total_token_amount,
-        transfer_token_instructions[0].decimals,
-        fee,
-        blockhash,
-    )
+
+    if verified_payment_request:
+        if len(transfer_token_instructions) > 1:
+            raise ProcessError("Multiple transfers not supported for payment requests")
+        provider_address = base58.encode(token_account)
+        await confirm_payment_request(
+            provider_address,
+            signer_path,
+            total_token_amount,
+            transfer_token_instructions[0].decimals,
+            token,
+            fee,
+            verified_payment_request,
+        )
+    else:
+        await confirm_token_transfer(
+            token_account if base_address is None else base_address,
+            token_account,
+            token,
+            is_unknown,
+            total_token_amount,
+            transfer_token_instructions[0].decimals,
+            fee,
+            blockhash,
+        )
     return True
 
 
@@ -179,6 +198,7 @@ async def try_confirm_predefined_transaction(
     signer_public_key: bytes,
     blockhash: bytes,
     additional_info: AdditionalTxInfo,
+    verified_payment_request: PaymentRequest | None,
 ) -> bool:
     from .layout import confirm_system_transfer
     from .transaction.instructions import SystemProgramTransferInstruction
@@ -214,6 +234,7 @@ async def try_confirm_predefined_transaction(
         signer_path,
         blockhash,
         additional_info,
+        verified_payment_request,
     )
 
 
diff --git a/core/src/apps/solana/sign_tx.py b/core/src/apps/solana/sign_tx.py
index 7e67dfb4..94d2a553 100644
--- a/core/src/apps/solana/sign_tx.py
+++ b/core/src/apps/solana/sign_tx.py
@@ -1,5 +1,6 @@
 from typing import TYPE_CHECKING
 
+from trezor.crypto import base58
 from trezor.wire import DataError
 
 from apps.common.keychain import with_slip44_keychain
@@ -11,13 +12,15 @@ from .types import AdditionalTxInfo
 if TYPE_CHECKING:
     from trezor.messages import SolanaSignTx, SolanaTxSignature
 
-    from apps.common.keychain import Keychain
+    from apps.common.keychain import Keychain as Slip21Keychain
 
 
-@with_slip44_keychain(*PATTERNS, slip44_id=SLIP44_ID, curve=CURVE)
+@with_slip44_keychain(
+    *PATTERNS, slip44_id=SLIP44_ID, curve=CURVE, slip21_namespaces=[[b"SLIP-0024"]]
+)
 async def sign_tx(
     msg: SolanaSignTx,
-    keychain: Keychain,
+    keychain: Slip21Keychain,
 ) -> SolanaTxSignature:
     from trezor import TR
     from trezor.crypto.curve import ed25519
@@ -28,7 +31,10 @@ async def sign_tx(
     from apps.common import seed
 
     from .layout import confirm_transaction
-    from .predefined_transaction import try_confirm_predefined_transaction
+    from .predefined_transaction import (
+        get_token_transfer_instructions,
+        try_confirm_predefined_transaction,
+    )
 
     address_n = msg.address_n  # local_cache_attribute
     serialized_tx = msg.serialized_tx  # local_cache_attribute
@@ -66,6 +72,20 @@ async def sign_tx(
         msg.additional_info
     )
 
+    if msg.payment_req:
+        from apps.common.payment_request import PaymentRequestVerifier
+
+        transfer_token_instructions = get_token_transfer_instructions(
+            transaction.get_visible_instructions()
+        )
+        verifier = PaymentRequestVerifier(msg.payment_req, SLIP44_ID, keychain)
+        for transfer_token_instruction in transfer_token_instructions:
+            verifier.add_output(
+                transfer_token_instruction.amount,
+                base58.encode(transfer_token_instruction.destination_account[0]),
+            )
+        verifier.verify()
+
     if not await try_confirm_predefined_transaction(
         transaction,
         fee,
@@ -73,6 +93,7 @@ async def sign_tx(
         signer_public_key,
         transaction.blockhash,
         additional_tx_info,
+        msg.payment_req,
     ):
         await confirm_instructions(
             address_n, signer_public_key, transaction, additional_tx_info
diff --git a/core/src/trezor/messages.py b/core/src/trezor/messages.py
index a9198c93..f7706e41 100644
--- a/core/src/trezor/messages.py
+++ b/core/src/trezor/messages.py
@@ -5454,6 +5454,7 @@ if TYPE_CHECKING:
         address_n: "list[int]"
         serialized_tx: "bytes"
         additional_info: "SolanaTxAdditionalInfo | None"
+        payment_req: "PaymentRequest | None"
 
         def __init__(
             self,
@@ -5461,6 +5462,7 @@ if TYPE_CHECKING:
             serialized_tx: "bytes",
             address_n: "list[int] | None" = None,
             additional_info: "SolanaTxAdditionalInfo | None" = None,
+            payment_req: "PaymentRequest | None" = None,
         ) -> None:
             pass
 
diff --git a/python/src/trezorlib/messages.py b/python/src/trezorlib/messages.py
index 17eaea5d..7b63c43c 100644
--- a/python/src/trezorlib/messages.py
+++ b/python/src/trezorlib/messages.py
@@ -7067,6 +7067,7 @@ class SolanaSignTx(protobuf.MessageType):
         1: protobuf.Field("address_n", "uint32", repeated=True, required=False, default=None),
         2: protobuf.Field("serialized_tx", "bytes", repeated=False, required=True),
         3: protobuf.Field("additional_info", "SolanaTxAdditionalInfo", repeated=False, required=False, default=None),
+        4: protobuf.Field("payment_req", "PaymentRequest", repeated=False, required=False, default=None),
     }
 
     def __init__(
@@ -7075,10 +7076,12 @@ class SolanaSignTx(protobuf.MessageType):
         serialized_tx: "bytes",
         address_n: Optional[Sequence["int"]] = None,
         additional_info: Optional["SolanaTxAdditionalInfo"] = None,
+        payment_req: Optional["PaymentRequest"] = None,
     ) -> None:
         self.address_n: Sequence["int"] = address_n if address_n is not None else []
         self.serialized_tx = serialized_tx
         self.additional_info = additional_info
+        self.payment_req = payment_req
 
 
 class SolanaTxSignature(protobuf.MessageType):
diff --git a/python/src/trezorlib/solana.py b/python/src/trezorlib/solana.py
index 27762211..ad576fb6 100644
--- a/python/src/trezorlib/solana.py
+++ b/python/src/trezorlib/solana.py
@@ -58,12 +58,14 @@ def sign_tx(
     address_n: List[int],
     serialized_tx: bytes,
     additional_info: Optional[messages.SolanaTxAdditionalInfo],
+    payment_req: Optional[messages.PaymentRequest] = None,
 ) -> bytes:
     return session.call(
         messages.SolanaSignTx(
             address_n=address_n,
             serialized_tx=serialized_tx,
             additional_info=additional_info,
+            payment_req=payment_req,
         ),
         expect=messages.SolanaTxSignature,
     ).signature
diff --git a/rust/trezor-client/src/protos/generated/messages_solana.rs b/rust/trezor-client/src/protos/generated/messages_solana.rs
index 700d53f2..12c06cf5 100644
--- a/rust/trezor-client/src/protos/generated/messages_solana.rs
+++ b/rust/trezor-client/src/protos/generated/messages_solana.rs
@@ -1285,6 +1285,8 @@ pub struct SolanaSignTx {
     pub serialized_tx: ::std::option::Option<::std::vec::Vec<u8>>,
     // @@protoc_insertion_point(field:hw.trezor.messages.solana.SolanaSignTx.additional_info)
     pub additional_info: ::protobuf::MessageField<SolanaTxAdditionalInfo>,
+    // @@protoc_insertion_point(field:hw.trezor.messages.solana.SolanaSignTx.payment_req)
+    pub payment_req: ::protobuf::MessageField<super::messages_common::PaymentRequest>,
     // special fields
     // @@protoc_insertion_point(special_field:hw.trezor.messages.solana.SolanaSignTx.special_fields)
     pub special_fields: ::protobuf::SpecialFields,
@@ -1338,7 +1340,7 @@ impl SolanaSignTx {
     }
 
     fn generated_message_descriptor_data() -> ::protobuf::reflect::GeneratedMessageDescriptorData {
-        let mut fields = ::std::vec::Vec::with_capacity(3);
+        let mut fields = ::std::vec::Vec::with_capacity(4);
         let mut oneofs = ::std::vec::Vec::with_capacity(0);
         fields.push(::protobuf::reflect::rt::v2::make_vec_simpler_accessor::<_, _>(
             "address_n",
@@ -1355,6 +1357,11 @@ impl SolanaSignTx {
             |m: &SolanaSignTx| { &m.additional_info },
             |m: &mut SolanaSignTx| { &mut m.additional_info },
         ));
+        fields.push(::protobuf::reflect::rt::v2::make_message_field_accessor::<_, super::messages_common::PaymentRequest>(
+            "payment_req",
+            |m: &SolanaSignTx| { &m.payment_req },
+            |m: &mut SolanaSignTx| { &mut m.payment_req },
+        ));
         ::protobuf::reflect::GeneratedMessageDescriptorData::new_2::<SolanaSignTx>(
             "SolanaSignTx",
             fields,
@@ -1375,6 +1382,11 @@ impl ::protobuf::Message for SolanaSignTx {
                 return false;
             }
         };
+        for v in &self.payment_req {
+            if !v.is_initialized() {
+                return false;
+            }
+        };
         true
     }
 
@@ -1393,6 +1405,9 @@ impl ::protobuf::Message for SolanaSignTx {
                 26 => {
                     ::protobuf::rt::read_singular_message_into_field(is, &mut self.additional_info)?;
                 },
+                34 => {
+                    ::protobuf::rt::read_singular_message_into_field(is, &mut self.payment_req)?;
+                },
                 tag => {
                     ::protobuf::rt::read_unknown_or_skip_group(tag, is, self.special_fields.mut_unknown_fields())?;
                 },
@@ -1415,6 +1430,10 @@ impl ::protobuf::Message for SolanaSignTx {
             let len = v.compute_size();
             my_size += 1 + ::protobuf::rt::compute_raw_varint64_size(len) + len;
         }
+        if let Some(v) = self.payment_req.as_ref() {
+            let len = v.compute_size();
+            my_size += 1 + ::protobuf::rt::compute_raw_varint64_size(len) + len;
+        }
         my_size += ::protobuf::rt::unknown_fields_size(self.special_fields.unknown_fields());
         self.special_fields.cached_size().set(my_size as u32);
         my_size
@@ -1430,6 +1449,9 @@ impl ::protobuf::Message for SolanaSignTx {
         if let Some(v) = self.additional_info.as_ref() {
             ::protobuf::rt::write_message_field_with_cached_size(3, v, os)?;
         }
+        if let Some(v) = self.payment_req.as_ref() {
+            ::protobuf::rt::write_message_field_with_cached_size(4, v, os)?;
+        }
         os.write_unknown_fields(self.special_fields.unknown_fields())?;
         ::std::result::Result::Ok(())
     }
@@ -1450,6 +1472,7 @@ impl ::protobuf::Message for SolanaSignTx {
         self.address_n.clear();
         self.serialized_tx = ::std::option::Option::None;
         self.additional_info.clear();
+        self.payment_req.clear();
         self.special_fields.clear();
     }
 
@@ -1458,6 +1481,7 @@ impl ::protobuf::Message for SolanaSignTx {
             address_n: ::std::vec::Vec::new(),
             serialized_tx: ::std::option::Option::None,
             additional_info: ::protobuf::MessageField::none(),
+            payment_req: ::protobuf::MessageField::none(),
             special_fields: ::protobuf::SpecialFields::new(),
         };
         &instance
@@ -1643,26 +1667,29 @@ impl ::protobuf::reflect::ProtobufValue for SolanaTxSignature {
 }
 
 static file_descriptor_proto_data: &'static [u8] = b"\
-    \n\x15messages-solana.proto\x12\x19hw.trezor.messages.solana\"T\n\x12Sol\
-    anaGetPublicKey\x12\x1b\n\taddress_n\x18\x01\x20\x03(\rR\x08addressN\x12\
-    !\n\x0cshow_display\x18\x02\x20\x01(\x08R\x0bshowDisplay\"0\n\x0fSolanaP\
-    ublicKey\x12\x1d\n\npublic_key\x18\x01\x20\x02(\x0cR\tpublicKey\"n\n\x10\
-    SolanaGetAddress\x12\x1b\n\taddress_n\x18\x01\x20\x03(\rR\x08addressN\
-    \x12!\n\x0cshow_display\x18\x02\x20\x01(\x08R\x0bshowDisplay\x12\x1a\n\
-    \x08chunkify\x18\x03\x20\x01(\x08R\x08chunkify\";\n\rSolanaAddress\x12\
-    \x18\n\x07address\x18\x01\x20\x02(\tR\x07address\x12\x10\n\x03mac\x18\
-    \x02\x20\x01(\x0cR\x03mac\"\xa6\x01\n\x18SolanaTxTokenAccountInfo\x12!\n\
-    \x0cbase_address\x18\x01\x20\x02(\tR\x0bbaseAddress\x12#\n\rtoken_progra\
-    m\x18\x02\x20\x02(\tR\x0ctokenProgram\x12\x1d\n\ntoken_mint\x18\x03\x20\
-    \x02(\tR\ttokenMint\x12#\n\rtoken_account\x18\x04\x20\x02(\tR\x0ctokenAc\
-    count\"\xa4\x01\n\x16SolanaTxAdditionalInfo\x12e\n\x14token_accounts_inf\
-    os\x18\x01\x20\x03(\x0b23.hw.trezor.messages.solana.SolanaTxTokenAccount\
-    InfoR\x12tokenAccountsInfos\x12#\n\rencoded_token\x18\x02\x20\x01(\x0cR\
-    \x0cencodedToken\"\xac\x01\n\x0cSolanaSignTx\x12\x1b\n\taddress_n\x18\
-    \x01\x20\x03(\rR\x08addressN\x12#\n\rserialized_tx\x18\x02\x20\x02(\x0cR\
-    \x0cserializedTx\x12Z\n\x0fadditional_info\x18\x03\x20\x01(\x0b21.hw.tre\
-    zor.messages.solana.SolanaTxAdditionalInfoR\x0eadditionalInfo\"1\n\x11So\
-    lanaTxSignature\x12\x1c\n\tsignature\x18\x01\x20\x02(\x0cR\tsignature\
+    \n\x15messages-solana.proto\x12\x19hw.trezor.messages.solana\x1a\x15mess\
+    ages-common.proto\x1a\roptions.proto\"T\n\x12SolanaGetPublicKey\x12\x1b\
+    \n\taddress_n\x18\x01\x20\x03(\rR\x08addressN\x12!\n\x0cshow_display\x18\
+    \x02\x20\x01(\x08R\x0bshowDisplay\"0\n\x0fSolanaPublicKey\x12\x1d\n\npub\
+    lic_key\x18\x01\x20\x02(\x0cR\tpublicKey\"n\n\x10SolanaGetAddress\x12\
+    \x1b\n\taddress_n\x18\x01\x20\x03(\rR\x08addressN\x12!\n\x0cshow_display\
+    \x18\x02\x20\x01(\x08R\x0bshowDisplay\x12\x1a\n\x08chunkify\x18\x03\x20\
+    \x01(\x08R\x08chunkify\";\n\rSolanaAddress\x12\x18\n\x07address\x18\x01\
+    \x20\x02(\tR\x07address\x12\x10\n\x03mac\x18\x02\x20\x01(\x0cR\x03mac\"\
+    \xa6\x01\n\x18SolanaTxTokenAccountInfo\x12!\n\x0cbase_address\x18\x01\
+    \x20\x02(\tR\x0bbaseAddress\x12#\n\rtoken_program\x18\x02\x20\x02(\tR\
+    \x0ctokenProgram\x12\x1d\n\ntoken_mint\x18\x03\x20\x02(\tR\ttokenMint\
+    \x12#\n\rtoken_account\x18\x04\x20\x02(\tR\x0ctokenAccount\"\xa4\x01\n\
+    \x16SolanaTxAdditionalInfo\x12e\n\x14token_accounts_infos\x18\x01\x20\
+    \x03(\x0b23.hw.trezor.messages.solana.SolanaTxTokenAccountInfoR\x12token\
+    AccountsInfos\x12#\n\rencoded_token\x18\x02\x20\x01(\x0cR\x0cencodedToke\
+    n\"\xfe\x01\n\x0cSolanaSignTx\x12\x1b\n\taddress_n\x18\x01\x20\x03(\rR\
+    \x08addressN\x12#\n\rserialized_tx\x18\x02\x20\x02(\x0cR\x0cserializedTx\
+    \x12Z\n\x0fadditional_info\x18\x03\x20\x01(\x0b21.hw.trezor.messages.sol\
+    ana.SolanaTxAdditionalInfoR\x0eadditionalInfo\x12P\n\x0bpayment_req\x18\
+    \x04\x20\x01(\x0b2).hw.trezor.messages.common.PaymentRequestR\npaymentRe\
+    qB\x04\xc8\xf0\x19\x01\"1\n\x11SolanaTxSignature\x12\x1c\n\tsignature\
+    \x18\x01\x20\x02(\x0cR\tsignature\
 ";
 
 /// `FileDescriptorProto` object which was a source for this generated file
@@ -1679,7 +1706,9 @@ pub fn file_descriptor() -> &'static ::protobuf::reflect::FileDescriptor {
     static file_descriptor: ::protobuf::rt::Lazy<::protobuf::reflect::FileDescriptor> = ::protobuf::rt::Lazy::new();
     file_descriptor.get(|| {
         let generated_file_descriptor = generated_file_descriptor_lazy.get(|| {
-            let mut deps = ::std::vec::Vec::with_capacity(0);
+            let mut deps = ::std::vec::Vec::with_capacity(2);
+            deps.push(super::messages_common::file_descriptor().clone());
+            deps.push(super::options::file_descriptor().clone());
             let mut messages = ::std::vec::Vec::with_capacity(8);
             messages.push(SolanaGetPublicKey::generated_message_descriptor_data());
             messages.push(SolanaPublicKey::generated_message_descriptor_data());
diff --git a/tests/common.py b/tests/common.py
index 8307ded7..cfdc8acd 100644
--- a/tests/common.py
+++ b/tests/common.py
@@ -112,9 +112,12 @@ def parametrize_using_common_fixtures(*paths: str) -> "MarkDecorator":
                 if skip_model == "t3t1":
                     skiplist.append(models.T3T1)
             if skiplist:
-                skip_marks = [pytest.mark.models(skip=skiplist)]
+                extra_marks = [pytest.mark.models(skip=skiplist)]
             else:
-                skip_marks = []
+                extra_marks = []
+
+            if test.get("experimental"):
+                extra_marks.append(pytest.mark.experimental)
 
             tests.append(
                 pytest.param(
@@ -126,7 +129,7 @@ def parametrize_using_common_fixtures(*paths: str) -> "MarkDecorator":
                             mnemonic=fixture["setup"]["mnemonic"],
                         )
                     ]
-                    + skip_marks,
+                    + extra_marks,
                     id=test_id,
                 )
             )
diff --git a/tests/device_tests/solana/test_sign_tx.py b/tests/device_tests/solana/test_sign_tx.py
index 5ed191d9..e495533c 100644
--- a/tests/device_tests/solana/test_sign_tx.py
+++ b/tests/device_tests/solana/test_sign_tx.py
@@ -16,14 +16,21 @@
 
 import pytest
 
-from trezorlib import messages
+from trezorlib import btc, messages, misc
 from trezorlib.debuglink import SessionDebugWrapper as Session
-from trezorlib.solana import sign_tx
+from trezorlib.exceptions import TrezorFailure
+from trezorlib.solana import get_authenticated_address, sign_tx
 from trezorlib.tools import b58decode, parse_path
 
 from ...common import parametrize_using_common_fixtures
 from ...definitions import encode_solana_token
 from ...input_flows import InputFlowConfirmAllWarnings
+from ..payment_req import (
+    CoinPurchaseMemo,
+    RefundMemo,
+    TextDetailsMemo,
+    make_payment_request,
+)
 from .construct.instructions import PROGRAMS, UnknownInstruction
 from .construct.transaction import Message, RawInstruction
 
@@ -40,6 +47,7 @@ pytestmark = [pytest.mark.altcoin, pytest.mark.solana, pytest.mark.models("core"
     "solana/sign_tx.unknown_instructions.json",
     "solana/sign_tx.predefined_transactions.json",
     "solana/sign_tx.staking_transactions.json",
+    "solana/sign_tx.payment_request.json",
 )
 def test_solana_sign_tx(session: Session, parameters, result):
     serialized_tx = _serialize_tx(parameters["construct"])
@@ -73,14 +81,66 @@ def test_solana_sign_tx(session: Session, parameters, result):
                 encoded_token=encoded_token,
             )
 
-        actual_result = sign_tx(
-            session,
-            address_n=parse_path(parameters["address"]),
-            serialized_tx=serialized_tx,
-            additional_info=additional_info,
-        )
+        if parameters.get("payment_req"):
+            purchase_memo = CoinPurchaseMemo(
+                amount="0.00001 BTC",
+                coin_name="Bitcoin",
+                slip44=0,
+                address_n=parse_path("m/44h/0h/0h/0/0"),
+            )
+            purchase_memo.address_resp = btc.get_authenticated_address(
+                session, purchase_memo.coin_name, purchase_memo.address_n
+            )
+            refund_memo = RefundMemo(address_n=parse_path("m/44h/501h/0h/1h"))
+            refund_memo.address_resp = get_authenticated_address(
+                session, refund_memo.address_n, False
+            )
+            text_details_memo = TextDetailsMemo(
+                title="Are you sure...",
+                text="... you want to swap your valuable FAKE tokens for some sats?",
+            )
+            memos = [purchase_memo, refund_memo, text_details_memo]
+            nonce = misc.get_nonce(session)
+            payment_request = make_payment_request(
+                session,
+                recipient_name="trezor.io",
+                slip44=501,
+                outputs=[
+                    (
+                        i["data"]["amount"],
+                        parameters["construct"]["accounts"][
+                            i["accounts"]["destination_account"]
+                        ],
+                    )
+                    for i in parameters["construct"]["instructions"]
+                ],
+                memos=memos,
+                nonce=nonce,
+            )
+        else:
+            payment_request = None
 
-    assert actual_result == bytes.fromhex(result["expected_signature"])
+        if "expected_signature" in result:
+            actual_result = sign_tx(
+                session,
+                address_n=parse_path(parameters["address"]),
+                serialized_tx=serialized_tx,
+                additional_info=additional_info,
+                payment_req=payment_request,
+            )
+
+            assert actual_result == bytes.fromhex(result["expected_signature"])
+        elif "error_message" in result:
+            with pytest.raises(TrezorFailure, match=result["error_message"]):
+                sign_tx(
+                    session,
+                    address_n=parse_path(parameters["address"]),
+                    serialized_tx=serialized_tx,
+                    additional_info=additional_info,
+                    payment_req=payment_request,
+                )
+        else:
+            assert False, "Invalid expected result"
 
 
 def _serialize_tx(tx_construct):
diff --git a/tests/ui_tests/fixtures.json b/tests/ui_tests/fixtures.json
index 551be03e..94a1c762 100644
--- a/tests/ui_tests/fixtures.json
+++ b/tests/ui_tests/fixtures.json
@@ -11553,6 +11553,8 @@
 "T3B1_cs_solana-test_sign_tx.py::test_solana_sign_tx[mint_to_checked_with_token_definition]": "91c7111dbcb35cc3a75f4cf184ea563af264ee392b06d3f7236cbcadbe7e83c2",
 "T3B1_cs_solana-test_sign_tx.py::test_solana_sign_tx[multiple_claim_instructions]": "8c1eaaa7e3cd0187d4d6d08397e856b798c2cdf992347da92799211950d68b5f",
 "T3B1_cs_solana-test_sign_tx.py::test_solana_sign_tx[multiple_unstake_instructions]": "692577954117a7e25df314113c4b6ec28005ce7f89088d43a26e6c451c1c19e4",
+"T3B1_cs_solana-test_sign_tx.py::test_solana_sign_tx[payment_request]": "75c67c009c6ac48773b3e28a9b69f28f58920f4cac4cf276fc99a0ccbb897527",
+"T3B1_cs_solana-test_sign_tx.py::test_solana_sign_tx[payment_request_-_multiple_transfers]": "92840d4624bb07440bb1ab5cb4b57251c9950388accbc8334a9a7d609ededb01",
 "T3B1_cs_solana-test_sign_tx.py::test_solana_sign_tx[revoke]": "25869b974eea2a51c189d7bcf7804c5664e5e4344a0d2852bba6cb7e08c82c56",
 "T3B1_cs_solana-test_sign_tx.py::test_solana_sign_tx[revoke_-_multisig]": "3d992346f277193dee653d54f0ebed1183d2a31e28ed2a5d419c17ec1b9dd809",
 "T3B1_cs_solana-test_sign_tx.py::test_solana_sign_tx[set_authority]": "aa091f80f19b917689d87f770b348eef4a8d5046284c392790c4fbe832396039",
@@ -12989,6 +12991,8 @@
 "T3B1_de_solana-test_sign_tx.py::test_solana_sign_tx[mint_to_checked_with_token_definition]": "44824b0a0087581e17726344c47532589ae0244edf9b200456107631a00ba80c",
 "T3B1_de_solana-test_sign_tx.py::test_solana_sign_tx[multiple_claim_instructions]": "75b877b68fab91a49d3e67171b7f3aa84808457fe47eb139cee3d47941f4f5f9",
 "T3B1_de_solana-test_sign_tx.py::test_solana_sign_tx[multiple_unstake_instructions]": "456527e0e7c8a50d5c4015a985b3f28aeb728903179da2b71806f43868c70f34",
+"T3B1_de_solana-test_sign_tx.py::test_solana_sign_tx[payment_request]": "ef8362ef0d18e3a1137f2daac9ce2678f47bc219615b51236f335c9475540fb0",
+"T3B1_de_solana-test_sign_tx.py::test_solana_sign_tx[payment_request_-_multiple_transfers]": "c92ee4e050daadcfc7cc95657b00deed76bb463d486eefcc66455bdbe60faa33",
 "T3B1_de_solana-test_sign_tx.py::test_solana_sign_tx[revoke]": "507e53b72f6638739ab6b409d7bd1d204b088db0189fb6b284b6873cc9fc3a06",
 "T3B1_de_solana-test_sign_tx.py::test_solana_sign_tx[revoke_-_multisig]": "97f92325e525106259f7e4490e8f2a2d8ff7d69b4fe76ffbd1e3a7e5a03ac899",
 "T3B1_de_solana-test_sign_tx.py::test_solana_sign_tx[set_authority]": "8860c8df0d9bd330b55400d8ef6712449dae6f3b5a53c9367cde59a4127f25a5",
@@ -14425,6 +14429,8 @@
 "T3B1_en_solana-test_sign_tx.py::test_solana_sign_tx[mint_to_checked_with_token_definition]": "6324e8586dabbecf189ba3493502e291724cdf2e18d573132dff1263dee0f1b0",
 "T3B1_en_solana-test_sign_tx.py::test_solana_sign_tx[multiple_claim_instructions]": "b3658e04e89344c0d0f7f37228491952c85a1c91e7f6f52209820dcd6fea8492",
 "T3B1_en_solana-test_sign_tx.py::test_solana_sign_tx[multiple_unstake_instructions]": "e11934f4bf5dca999dd18d7e88ef36eaaac835fc7d899143cc60105d9797bcfa",
+"T3B1_en_solana-test_sign_tx.py::test_solana_sign_tx[payment_request]": "e9f3ecd94bc3eebee5aad7e7fbe656bc95965fb4a5a7ff0d5ee3ffaa5a8c0b72",
+"T3B1_en_solana-test_sign_tx.py::test_solana_sign_tx[payment_request_-_multiple_transfers]": "1477d62e338f4d7c1bfac2fc5d2fc231218da5768666c11482dc1f83229506f3",
 "T3B1_en_solana-test_sign_tx.py::test_solana_sign_tx[revoke]": "78f45f2625b3101fc796fae2b1b55383158dd4db3c8678ecd8ba00d0d45c7f0a",
 "T3B1_en_solana-test_sign_tx.py::test_solana_sign_tx[revoke_-_multisig]": "2b2dc1d733ebb377880ce62682b76c9d3c108f4ec5a582d9a875012f4d3e0e11",
 "T3B1_en_solana-test_sign_tx.py::test_solana_sign_tx[set_authority]": "a9f9f5c4bf205555e7f1a4f89012b06e36143f575c4e33f78d619124b433a846",
@@ -15861,6 +15867,8 @@
 "T3B1_es_solana-test_sign_tx.py::test_solana_sign_tx[mint_to_checked_with_token_definition]": "02ac3699cddeb0f1d2b8770ce6c883ca5f2b26ca3d09c87e1399d05b08d37aa4",
 "T3B1_es_solana-test_sign_tx.py::test_solana_sign_tx[multiple_claim_instructions]": "614e364e99f11367f3c4276a5ee68dfc5e0f8ccb73b8211480dc678fd1176eea",
 "T3B1_es_solana-test_sign_tx.py::test_solana_sign_tx[multiple_unstake_instructions]": "c4ca90e08c201d200abe54bafcd3c7332301b4a5cf13f5258c8a7b3f49ac86d3",
+"T3B1_es_solana-test_sign_tx.py::test_solana_sign_tx[payment_request]": "4a4103876bfff46b1c0f924dbfd05e5b8104d4772cd89824df0709d5644db253",
+"T3B1_es_solana-test_sign_tx.py::test_solana_sign_tx[payment_request_-_multiple_transfers]": "211e7c3419bd48ceefc570971fc522f809b39614563be948fd1e545366506dee",
 "T3B1_es_solana-test_sign_tx.py::test_solana_sign_tx[revoke]": "34255d61124f139d541268435d9164890340f2beb58dac3e47165be4ab66d807",
 "T3B1_es_solana-test_sign_tx.py::test_solana_sign_tx[revoke_-_multisig]": "4b1b6cc2c9e0f075f6219becc7478a28178ab895a9bca139490f18278e9f91a9",
 "T3B1_es_solana-test_sign_tx.py::test_solana_sign_tx[set_authority]": "cbdf1dff3320a80bf894c32d1da1f87e2a7db54a6220d23179e80ea625109c82",
@@ -17297,6 +17305,8 @@
 "T3B1_fr_solana-test_sign_tx.py::test_solana_sign_tx[mint_to_checked_with_token_definition]": "38d67dbf1154ee7d59af3479a659667dff2b9864322f60b8a187227e16c112c2",
 "T3B1_fr_solana-test_sign_tx.py::test_solana_sign_tx[multiple_claim_instructions]": "05da6aeb89a980b110fa52fed88511ac1448a36ac4f82b0c84ffa308aaae50ab",
 "T3B1_fr_solana-test_sign_tx.py::test_solana_sign_tx[multiple_unstake_instructions]": "b643b9866a4c2f321d41425d18a40bd8ecdaa485a6634860347323710315feed",
+"T3B1_fr_solana-test_sign_tx.py::test_solana_sign_tx[payment_request]": "e42c41320ff53160d1d97cc4a37cdb47eafa5b5214b3188a756e7b423903c957",
+"T3B1_fr_solana-test_sign_tx.py::test_solana_sign_tx[payment_request_-_multiple_transfers]": "35c9c9529c59ca5c386ac05856f7452f26cde732203b5b61ec9321230b52df89",
 "T3B1_fr_solana-test_sign_tx.py::test_solana_sign_tx[revoke]": "3c1a8f23b646a429f8d592931aa5c9cec8e873da088258522226129cf84a7e37",
 "T3B1_fr_solana-test_sign_tx.py::test_solana_sign_tx[revoke_-_multisig]": "115f8ded8fc5691c6996ee5a3ef947a4665474b6a05d9e5a22c1ce76f39d5027",
 "T3B1_fr_solana-test_sign_tx.py::test_solana_sign_tx[set_authority]": "8f285f4156a3bf70fe6aa37283984bf06e4aacb7e75553734a6a0934842db98c",
@@ -18733,6 +18743,8 @@
 "T3B1_pt_solana-test_sign_tx.py::test_solana_sign_tx[mint_to_checked_with_token_definition]": "1864d6dc791ad4a8c4fcdc76fe4c672a694f7ecbb22217b2575684cf0459dca3",
 "T3B1_pt_solana-test_sign_tx.py::test_solana_sign_tx[multiple_claim_instructions]": "8c34aca63818d60a790902ae7c75dca61552c1532749e8c5717393677cd03ee3",
 "T3B1_pt_solana-test_sign_tx.py::test_solana_sign_tx[multiple_unstake_instructions]": "021ec8e4c3139993e9119648d6c8fa7c5a0e5115508074f2830f72117a14f298",
+"T3B1_pt_solana-test_sign_tx.py::test_solana_sign_tx[payment_request]": "96fb298e9406bfc79edfad1670cc6de4329d60e5f644696657aa9742f1da1abb",
+"T3B1_pt_solana-test_sign_tx.py::test_solana_sign_tx[payment_request_-_multiple_transfers]": "6ba5ca7223cd8ad675e081407f186acdfc8420304eea96de0fde5eda45ef0a57",
 "T3B1_pt_solana-test_sign_tx.py::test_solana_sign_tx[revoke]": "af8d94625c6ab1b5f0a449cd16e916e0a2c80fd982d79cafcdf47bd72973420c",
 "T3B1_pt_solana-test_sign_tx.py::test_solana_sign_tx[revoke_-_multisig]": "dfc9972865a3b5e6729ca7dd906df0e4f9ed70758306024e7860f9c87a184f01",
 "T3B1_pt_solana-test_sign_tx.py::test_solana_sign_tx[set_authority]": "d1a70252abdeb71437b0e6c335be8bdc9dd461adcba31086181bb47f934255b4",
@@ -20564,6 +20576,8 @@
 "T3T1_cs_solana-test_sign_tx.py::test_solana_sign_tx[mint_to_checked_with_token_definition]": "80d11619a044cfc2bc91ed8478e497233db299aed51ecd4ec5c0bf46a4cac7f8",
 "T3T1_cs_solana-test_sign_tx.py::test_solana_sign_tx[multiple_claim_instructions]": "ab02c175a771f71bb1103f57dd441725e323b5b94725e38f89cce3b168837558",
 "T3T1_cs_solana-test_sign_tx.py::test_solana_sign_tx[multiple_unstake_instructions]": "5d05ef09d7facf8e52c0d05330388f5a988e8ab32f53ea647005d5e3b4b9f97d",
+"T3T1_cs_solana-test_sign_tx.py::test_solana_sign_tx[payment_request]": "f98690bb374d10745d5793e1560d6fbfde80b89f732197d1481a09c14dc1fc01",
+"T3T1_cs_solana-test_sign_tx.py::test_solana_sign_tx[payment_request_-_multiple_transfers]": "592adf9c06f8f39132298b46037dd524fac99e58237a0c023197bf47df67d632",
 "T3T1_cs_solana-test_sign_tx.py::test_solana_sign_tx[revoke]": "9e382c26d3fc79a6af7bcc1defa1a66acb42f4abe59366a9ee04deb216fcf03b",
 "T3T1_cs_solana-test_sign_tx.py::test_solana_sign_tx[revoke_-_multisig]": "ba76529047037224215418dcf1683e67512abb1e98b48cf0630067c8ba68d7b2",
 "T3T1_cs_solana-test_sign_tx.py::test_solana_sign_tx[set_authority]": "32c774e385efa98de355919dda4af1c11f0d606e2a24c25a3efceed5604c79e9",
@@ -22031,6 +22045,8 @@
 "T3T1_de_solana-test_sign_tx.py::test_solana_sign_tx[mint_to_checked_with_token_definition]": "75cb83899e29d6a627eae83a843d5e8c94ebca0cecedc658077c248bca4f8240",
 "T3T1_de_solana-test_sign_tx.py::test_solana_sign_tx[multiple_claim_instructions]": "39d2ca4c679d72665ad3ba735c2939b2c7186dd6d556777c9cb615e672507373",
 "T3T1_de_solana-test_sign_tx.py::test_solana_sign_tx[multiple_unstake_instructions]": "ee964d60473df959a2b21e7baa7ed33818d237d61e4440b8808d892bb1dd26af",
+"T3T1_de_solana-test_sign_tx.py::test_solana_sign_tx[payment_request]": "d88ec983d198a7ad9ec2d1fc38978047dabfda7d47b7b5de70497df3ad0d7731",
+"T3T1_de_solana-test_sign_tx.py::test_solana_sign_tx[payment_request_-_multiple_transfers]": "f2fcbbd7ad83aff9adc0ee97fe98e7272d8bcfcc4a023798e2ab1c9895fda70f",
 "T3T1_de_solana-test_sign_tx.py::test_solana_sign_tx[revoke]": "37634d1000b445ae3a53df09518f364a1f92451536e6ce25f9ee0ed10b8c127c",
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