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From 0f632fa180e5a44219ab6bbe0879c3583f8c65cf Mon Sep 17 00:00:00 2001
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From: Pingfan Liu <piliu@redhat.com>
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Date: Tue, 9 Nov 2021 11:24:22 +0800
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Subject: [PATCH] RHEL-only
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Cope with RHEL8 kernel
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Signed-off-by: Pingfan Liu <piliu@redhat.com>
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---
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arch/arm64.c | 14 +++++++++++++-
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makedumpfile.c | 2 ++
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makedumpfile.h | 1 +
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3 files changed, 16 insertions(+), 1 deletion(-)
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diff --git a/makedumpfile-1.7.1/arch/arm64.c b/makedumpfile-1.7.1/arch/arm64.c
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index 1072178..95beae6 100644
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--- a/makedumpfile-1.7.1/arch/arm64.c
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+++ b/makedumpfile-1.7.1/arch/arm64.c
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@@ -50,6 +50,7 @@ static int va_bits;
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static int vabits_actual;
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static int flipped_va;
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static unsigned long kimage_voffset;
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+static int max_user_va_bits;
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#define SZ_4K 4096
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#define SZ_16K 16384
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@@ -108,7 +109,7 @@ typedef unsigned long pgdval_t;
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#define PGDIR_SHIFT ARM64_HW_PGTABLE_LEVEL_SHIFT(4 - (pgtable_level))
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#define PGDIR_SIZE (_AC(1, UL) << PGDIR_SHIFT)
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#define PGDIR_MASK (~(PGDIR_SIZE-1))
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-#define PTRS_PER_PGD (1 << ((va_bits) - PGDIR_SHIFT))
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+#define PTRS_PER_PGD (1 << ((max_user_va_bits) - PGDIR_SHIFT))
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/*
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* Section address mask and size definitions.
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@@ -449,6 +450,17 @@ get_machdep_info_arm64(void)
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ERRMSG("Can't determine platform config values\n");
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return FALSE;
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}
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+ if (NUMBER(MAX_USER_VA_BITS) != NOT_FOUND_NUMBER) {
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+ max_user_va_bits = NUMBER(MAX_USER_VA_BITS);
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+ DEBUG_MSG("max_user_va_bits : %d (vmcoreinfo)\n",
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+ max_user_va_bits);
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+ }
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+ if (!max_user_va_bits) {
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+ max_user_va_bits = va_bits;
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+ DEBUG_MSG("max_user_va_bits : %d (default = va_bits)\n",
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+ max_user_va_bits);
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+ }
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+
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kimage_voffset = NUMBER(kimage_voffset);
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info->section_size_bits = SECTIONS_SIZE_BITS;
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diff --git a/makedumpfile-1.7.1/makedumpfile.c b/makedumpfile-1.7.1/makedumpfile.c
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index 3ad4443..018ea4c 100644
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--- a/makedumpfile-1.7.1/makedumpfile.c
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+++ b/makedumpfile-1.7.1/makedumpfile.c
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@@ -2417,6 +2417,7 @@ write_vmcoreinfo_data(void)
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WRITE_NUMBER("HUGETLB_PAGE_DTOR", HUGETLB_PAGE_DTOR);
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#ifdef __aarch64__
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+ WRITE_NUMBER("MAX_USER_VA_BITS", MAX_USER_VA_BITS);
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WRITE_NUMBER("VA_BITS", VA_BITS);
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/* WRITE_NUMBER("TCR_EL1_T1SZ", TCR_EL1_T1SZ); should not exists */
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WRITE_NUMBER_UNSIGNED("PHYS_OFFSET", PHYS_OFFSET);
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@@ -2863,6 +2864,7 @@ read_vmcoreinfo(void)
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READ_NUMBER("phys_base", phys_base);
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READ_NUMBER("KERNEL_IMAGE_SIZE", KERNEL_IMAGE_SIZE);
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#ifdef __aarch64__
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+ READ_NUMBER("MAX_USER_VA_BITS", MAX_USER_VA_BITS);
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READ_NUMBER("VA_BITS", VA_BITS);
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READ_NUMBER("TCR_EL1_T1SZ", TCR_EL1_T1SZ);
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READ_NUMBER_UNSIGNED("PHYS_OFFSET", PHYS_OFFSET);
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diff --git a/makedumpfile-1.7.1/makedumpfile.h b/makedumpfile-1.7.1/makedumpfile.h
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index e59239d..b6236dd 100644
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--- a/makedumpfile-1.7.1/makedumpfile.h
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+++ b/makedumpfile-1.7.1/makedumpfile.h
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@@ -2064,6 +2064,7 @@ struct number_table {
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long phys_base;
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long KERNEL_IMAGE_SIZE;
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#ifdef __aarch64__
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+ long MAX_USER_VA_BITS;
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long VA_BITS;
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long TCR_EL1_T1SZ;
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unsigned long PHYS_OFFSET;
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--
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2.31.1
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