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From d0726d96b92e5dacd1df56756e168a50a4e62589 Mon Sep 17 00:00:00 2001
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From: Tao Liu <ltao@redhat.com>
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Date: Mon, 19 Sep 2022 17:49:22 +0800
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Subject: [PATCH 24/28] Fix page offset issue when converting physical to
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virtual address
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When trying to convert a physical address to its virtual
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address in dump_vmap_area() and dump_vmlist(), the vi->retval
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is added by 2 values: the page aligned address "pcheck"
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and page offset address "PAGEOFFSET(paddr)".
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However "paddr" is given by "pcheck", is also page aligned,
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so "PAGEOFFSET(paddr)" is always 0.
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In this patch, we will use PAGEOFFSET(vi->spec_addr) to give the
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page offset, vi->spec_addr is the physical address we'd like
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to convert, which contains the correct page offset.
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Signed-off-by: Tao Liu <ltao@redhat.com>
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Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
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---
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memory.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/memory.c b/memory.c
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index e44b59d2e805..a60c3f9493f6 100644
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--- a/memory.c
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+++ b/memory.c
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@@ -8861,7 +8861,7 @@ dump_vmlist(struct meminfo *vi)
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(vi->spec_addr < (paddr+PAGESIZE()))) {
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if (vi->flags & GET_PHYS_TO_VMALLOC) {
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vi->retval = pcheck +
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- PAGEOFFSET(paddr);
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+ PAGEOFFSET(vi->spec_addr);
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return;
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} else
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fprintf(fp,
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@@ -9010,7 +9010,7 @@ dump_vmap_area(struct meminfo *vi)
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(vi->spec_addr < (paddr+PAGESIZE()))) {
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if (vi->flags & GET_PHYS_TO_VMALLOC) {
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vi->retval = pcheck +
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- PAGEOFFSET(paddr);
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+ PAGEOFFSET(vi->spec_addr);
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FREEBUF(ld->list_ptr);
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return;
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} else
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--
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2.37.1
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