From: Mikel Rychliski <mikel@mikelr.com>
To: Ard Biesheuvel <ardb@kernel.org>, Ingo Molnar <mingo@kernel.org>
Cc: Mikel Rychliski <mikel@mikelr.com>,
linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] x86/efistub: Fix PCI ROM preservation in mixed mode
Date: Wed, 23 Aug 2023 17:51:58 -0400 [thread overview]
Message-ID: <20230823215159.29082-1-mikel@mikelr.com> (raw)
preserve_pci_rom_image() was accessing the romsize field in
efi_pci_io_protocol_t directly instead of using the efi_table_attr()
helper. This prevents the ROM image from being saved correctly during a
mixed mode boot.
Fixes: 2c3625cb9fa2 ("efi/x86: Fold __setup_efi_pci32() and __setup_efi_pci64() into one function")
Signed-off-by: Mikel Rychliski <mikel@mikelr.com>
---
drivers/firmware/efi/libstub/x86-stub.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/firmware/efi/libstub/x86-stub.c b/drivers/firmware/efi/libstub/x86-stub.c
index e976288728e9..2fee52ed335d 100644
--- a/drivers/firmware/efi/libstub/x86-stub.c
+++ b/drivers/firmware/efi/libstub/x86-stub.c
@@ -72,7 +72,7 @@ preserve_pci_rom_image(efi_pci_io_protocol_t *pci, struct pci_setup_rom **__rom)
rom->data.type = SETUP_PCI;
rom->data.len = size - sizeof(struct setup_data);
rom->data.next = 0;
- rom->pcilen = pci->romsize;
+ rom->pcilen = romsize;
*__rom = rom;
status = efi_call_proto(pci, pci.read, EfiPciIoWidthUint16,
--
2.35.3
next reply other threads:[~2023-08-23 22:11 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-23 21:51 Mikel Rychliski [this message]
2023-08-24 9:36 ` Ard Biesheuvel
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