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| author |   Tomáš Mózes <hydrapolic@gmail.com> | 2023-04-14 17:59:27 +0200 |
|---|---|---|
| committer | Tomáš Mózes <hydrapolic@gmail.com> | 2023-04-14 17:59:27 +0200 |
| commit | 83c3b8b1a5486948521768ca2f2ef6de59357210 (patch) | |
| tree | 23673f3e5851b792c908fdc602c3a3a8ab5c2133 /0032-EFI-don-t-convert-memory-marked-for-runtime-use-to-o.patch | |
| parent | Xen 4.16.3-pre-patchset-1 (diff) | |
| download | xen-upstream-patches-83c3b8b1a5486948521768ca2f2ef6de59357210.tar.gz xen-upstream-patches-83c3b8b1a5486948521768ca2f2ef6de59357210.tar.bz2 xen-upstream-patches-83c3b8b1a5486948521768ca2f2ef6de59357210.zip | |
Xen 4.16.4-pre-patchset-04.16.4-pre-patchset-0
Signed-off-by: Tomáš Mózes <hydrapolic@gmail.com>
Diffstat (limited to '0032-EFI-don-t-convert-memory-marked-for-runtime-use-to-o.patch')
| -rw-r--r-- | 0032-EFI-don-t-convert-memory-marked-for-runtime-use-to-o.patch | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/0032-EFI-don-t-convert-memory-marked-for-runtime-use-to-o.patch b/0032-EFI-don-t-convert-memory-marked-for-runtime-use-to-o.patch deleted file mode 100644 index 33b98df..0000000 --- a/0032-EFI-don-t-convert-memory-marked-for-runtime-use-to-o.patch +++ /dev/null @@ -1,64 +0,0 @@ -From 54f8ed80c8308e65c3f57ae6cbd130f43f5ecbbd Mon Sep 17 00:00:00 2001 -From: Jan Beulich <jbeulich@suse.com> -Date: Mon, 31 Oct 2022 13:22:17 +0100 -Subject: [PATCH 32/87] EFI: don't convert memory marked for runtime use to - ordinary RAM -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -efi_init_memory() in both relevant places is treating EFI_MEMORY_RUNTIME -higher priority than the type of the range. To avoid accessing memory at -runtime which was re-used for other purposes, make -efi_arch_process_memory_map() follow suit. While in theory the same would -apply to EfiACPIReclaimMemory, we don't actually "reclaim" or clobber -that memory (converted to E820_ACPI on x86) there (and it would be a bug -if the Dom0 kernel tried to reclaim the range, bypassing Xen's memory -management, plus it would be at least bogus if it clobbered that space), -hence that type's handling can be left alone. - -Fixes: bf6501a62e80 ("x86-64: EFI boot code") -Fixes: facac0af87ef ("x86-64: EFI runtime code") -Fixes: 6d70ea10d49f ("Add ARM EFI boot support") -Signed-off-by: Jan Beulich <jbeulich@suse.com> -Acked-by: Roger Pau Monné <roger.pau@citrix.com> -Reviewed-by: Julien Grall <jgrall@amazon.com> -master commit: f324300c8347b6aa6f9c0b18e0a90bbf44011a9a -master date: 2022-10-21 12:30:24 +0200 ---- - xen/arch/arm/efi/efi-boot.h | 3 ++- - xen/arch/x86/efi/efi-boot.h | 4 +++- - 2 files changed, 5 insertions(+), 2 deletions(-) - -diff --git a/xen/arch/arm/efi/efi-boot.h b/xen/arch/arm/efi/efi-boot.h -index 9f267982397b..849071fe5308 100644 ---- a/xen/arch/arm/efi/efi-boot.h -+++ b/xen/arch/arm/efi/efi-boot.h -@@ -194,7 +194,8 @@ static EFI_STATUS __init efi_process_memory_map_bootinfo(EFI_MEMORY_DESCRIPTOR * - - for ( Index = 0; Index < (mmap_size / desc_size); Index++ ) - { -- if ( desc_ptr->Attribute & EFI_MEMORY_WB && -+ if ( !(desc_ptr->Attribute & EFI_MEMORY_RUNTIME) && -+ (desc_ptr->Attribute & EFI_MEMORY_WB) && - (desc_ptr->Type == EfiConventionalMemory || - desc_ptr->Type == EfiLoaderCode || - desc_ptr->Type == EfiLoaderData || -diff --git a/xen/arch/x86/efi/efi-boot.h b/xen/arch/x86/efi/efi-boot.h -index 4ee77fb9bfa2..d99601622310 100644 ---- a/xen/arch/x86/efi/efi-boot.h -+++ b/xen/arch/x86/efi/efi-boot.h -@@ -185,7 +185,9 @@ static void __init efi_arch_process_memory_map(EFI_SYSTEM_TABLE *SystemTable, - /* fall through */ - case EfiLoaderCode: - case EfiLoaderData: -- if ( desc->Attribute & EFI_MEMORY_WB ) -+ if ( desc->Attribute & EFI_MEMORY_RUNTIME ) -+ type = E820_RESERVED; -+ else if ( desc->Attribute & EFI_MEMORY_WB ) - type = E820_RAM; - else - case EfiUnusableMemory: --- -2.37.4 - |