x86/xen/pvh: Enable PAE mode for 32-bit guest only when CONFIG_X86_PAE is set

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[ Upstream commit db9aded979 ]

The PVH entry is available for 32-bit KVM guests, and 32-bit KVM guests
do not depend on CONFIG_X86_PAE. However, mk_early_pgtbl_32() builds
different pagetables depending on whether CONFIG_X86_PAE is set.
Therefore, enabling PAE mode for 32-bit KVM guests without
CONFIG_X86_PAE being set would result in a boot failure during CR3
loading.

Signed-off-by: Hou Wenlong <houwenlong.hwl@antgroup.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Message-ID: <d09ce9a134eb9cbc16928a5b316969f8ba606b81.1768017442.git.houwenlong.hwl@antgroup.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Hou Wenlong 2026-01-10 12:00:08 +08:00 • committed by Sasha Levin

parent 7aac0a30dc

commit 0cb30030b4

1 changed files with 2 additions and 0 deletions

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arch/x86/platform/pvh/head.S

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