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From b56c362132baef40cc25d910c1e0d217d83cfe44 Mon Sep 17 00:00:00 2001
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From: Janosch Frank <frankja@linux.ibm.com>
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Date: Thu, 11 Aug 2022 12:10:57 +0000
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Subject: [PATCH 25/42] dump: Rework get_start_block
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Cédric Le Goater <clg@redhat.com>
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RH-MergeRequest: 226: s390: Enhanced Interpretation for PCI Functions and Secure Execution guest dump
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RH-Bugzilla: 1664378 2043909
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RH-Acked-by: Thomas Huth <thuth@redhat.com>
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RH-Acked-by: Cornelia Huck <cohuck@redhat.com>
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RH-Acked-by: Jon Maloy <jmaloy@redhat.com>
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RH-Commit: [25/41] c93842a1aaeadcc11e91c194452fcd05d163b3ca
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get_start_block() returns the start address of the first memory block
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or -1.
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With the GuestPhysBlock iterator conversion we don't need to set the
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start address and can therefore remove that code and the "start"
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DumpState struct member. The only functionality left is the validation
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of the start block so it only makes sense to re-name the function to
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validate_start_block()
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Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
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Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
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Reviewed-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
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Message-Id: <20220811121111.9878-5-frankja@linux.ibm.com>
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(cherry picked from commit 0c2994ac9009577b967529ce18e269da5b280351)
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Signed-off-by: Cédric Le Goater <clg@redhat.com>
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---
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dump/dump.c | 20 ++++++--------------
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include/sysemu/dump.h | 2 --
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2 files changed, 6 insertions(+), 16 deletions(-)
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diff --git a/dump/dump.c b/dump/dump.c
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index d981e843dd..e6aa037f59 100644
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--- a/dump/dump.c
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+++ b/dump/dump.c
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@@ -1509,30 +1509,22 @@ static void create_kdump_vmcore(DumpState *s, Error **errp)
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}
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}
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-static ram_addr_t get_start_block(DumpState *s)
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+static int validate_start_block(DumpState *s)
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{
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GuestPhysBlock *block;
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if (!s->has_filter) {
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- s->next_block = QTAILQ_FIRST(&s->guest_phys_blocks.head);
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return 0;
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}
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QTAILQ_FOREACH(block, &s->guest_phys_blocks.head, next) {
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+ /* This block is out of the range */
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if (block->target_start >= s->begin + s->length ||
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block->target_end <= s->begin) {
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- /* This block is out of the range */
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continue;
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}
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-
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- s->next_block = block;
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- if (s->begin > block->target_start) {
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- s->start = s->begin - block->target_start;
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- } else {
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- s->start = 0;
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- }
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- return s->start;
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- }
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+ return 0;
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+ }
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return -1;
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}
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@@ -1679,8 +1671,8 @@ static void dump_init(DumpState *s, int fd, bool has_format,
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goto cleanup;
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}
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- s->start = get_start_block(s);
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- if (s->start == -1) {
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+ /* Is the filter filtering everything? */
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+ if (validate_start_block(s) == -1) {
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error_setg(errp, QERR_INVALID_PARAMETER, "begin");
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goto cleanup;
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}
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diff --git a/include/sysemu/dump.h b/include/sysemu/dump.h
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index ffc2ea1072..7fce1d4af6 100644
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--- a/include/sysemu/dump.h
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+++ b/include/sysemu/dump.h
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@@ -166,8 +166,6 @@ typedef struct DumpState {
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hwaddr memory_offset;
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int fd;
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- GuestPhysBlock *next_block;
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- ram_addr_t start;
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bool has_filter;
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int64_t begin;
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int64_t length;
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--
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2.37.3
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