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Subject[PATCH v2 3/5] x86/boot/64: Show original faulting address in case of error
Date
This makes the #PF handler print the original CR2 value in case of
error, instead of after aligning to PMD_SIZE.

Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
---
arch/x86/boot/compressed/ident_map_64.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/boot/compressed/ident_map_64.c b/arch/x86/boot/compressed/ident_map_64.c
index 063a60edcf99..fd957b2625e9 100644
--- a/arch/x86/boot/compressed/ident_map_64.c
+++ b/arch/x86/boot/compressed/ident_map_64.c
@@ -327,9 +327,6 @@ void do_boot_page_fault(struct pt_regs *regs, unsigned long error_code)

ghcb_fault = sev_es_check_ghcb_fault(address);

- address &= PMD_MASK;
- end = address + PMD_SIZE;
-
/*
* Check for unexpected error codes. Unexpected are:
* - Faults on present pages
@@ -345,5 +342,8 @@ void do_boot_page_fault(struct pt_regs *regs, unsigned long error_code)
* Error code is sane - now identity map the 2M region around
* the faulting address.
*/
+ address &= PMD_MASK;
+ end = address + PMD_SIZE;
+
add_identity_map(address, end);
}
--
2.26.2
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