From: Ard Biesheuvel <ardb+git@google.com>
To: linux-efi@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, x86@kernel.org,
Ard Biesheuvel <ardb@kernel.org>, Dave Young <dyoung@redhat.com>,
Gregory Price <gourry@gourry.net>,
Usama Arif <usamaarif642@gmail.com>,
Jiri Slaby <jirislaby@kernel.org>,
Breno Leitao <leitao@debian.org>
Subject: [PATCH 4/5] efi: Use efi_mem_reserve() to reserve the memory attribute table
Date: Thu, 26 Mar 2026 14:27:00 +0100 [thread overview]
Message-ID: <20260326132655.1733873-11-ardb+git@google.com> (raw)
In-Reply-To: <20260326132655.1733873-7-ardb+git@google.com>
From: Ard Biesheuvel <ardb@kernel.org>
Use efi_mem_reserve() rather than memblock_reserve() to reserve the EFI
memory attributes table. This is needed on x86, where memblock_reserve()
is not sufficient for assets that may be placed in EFI boot services
data memory.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
---
drivers/firmware/efi/memattr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/firmware/efi/memattr.c b/drivers/firmware/efi/memattr.c
index 8d4004149297..f9cfdec1fb51 100644
--- a/drivers/firmware/efi/memattr.c
+++ b/drivers/firmware/efi/memattr.c
@@ -59,7 +59,7 @@ void __init efi_memattr_init(void)
}
tbl_size = sizeof(*tbl) + size;
- memblock_reserve(efi_mem_attr_table, tbl_size);
+ efi_mem_reserve(efi_mem_attr_table, tbl_size);
set_bit(EFI_MEM_ATTR, &efi.flags);
unmap:
--
2.53.0.1018.g2bb0e51243-goog
next prev parent reply other threads:[~2026-03-26 13:27 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-26 13:26 [PATCH 0/5] x86/efi: Re-enable memory attributes table for kexec Ard Biesheuvel
2026-03-26 13:26 ` [PATCH 1/5] efi/memattr: Fix thinko in table size sanity check Ard Biesheuvel
2026-03-29 17:51 ` Gregory Price
2026-03-26 13:26 ` [PATCH 2/5] x86/efi: Gather initial memory reservation and table handling logic Ard Biesheuvel
2026-03-29 17:53 ` Gregory Price
2026-03-26 13:26 ` [PATCH 3/5] x86/efi: Defer the call to efi_memattr_init() Ard Biesheuvel
2026-03-26 13:27 ` Ard Biesheuvel [this message]
2026-03-26 13:27 ` [PATCH 5/5] x86/efi: Drop kexec quirk for the EFI memory attributes table Ard Biesheuvel
2026-03-29 17:55 ` [PATCH 0/5] x86/efi: Re-enable memory attributes table for kexec Gregory Price
2026-03-30 10:53 ` Dave Young
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