65 lines
2.2 KiB
Diff
65 lines
2.2 KiB
Diff
From d12a91e0baafce7b1cbacff7cf9339eeb0011732 Mon Sep 17 00:00:00 2001
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From: Janosch Frank <frankja@linux.ibm.com>
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Date: Thu, 9 Nov 2023 12:04:43 +0000
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Subject: [PATCH] target/s390x/arch_dump: Add arch cleanup function for PV
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dumps
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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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PV dumps block vcpu runs until dump end is reached. If there's an
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error between PV dump init and PV dump end the vm will never be able
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to run again. One example of such an error is insufficient disk space
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for the dump file.
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Let's add a cleanup function that tries to do a dump end. The dump
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completion data is discarded but there's no point in writing it to a
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file anyway if there's a possibility that other PV dump data is
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missing.
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Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
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Reviewed-by: Thomas Huth <thuth@redhat.com>
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Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
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Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
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Message-ID: <20231109120443.185979-4-frankja@linux.ibm.com>
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Signed-off-by: Thomas Huth <thuth@redhat.com>
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---
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target/s390x/arch_dump.c | 17 +++++++++++++++++
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1 file changed, 17 insertions(+)
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diff --git a/target/s390x/arch_dump.c b/target/s390x/arch_dump.c
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index bdb0bfa0e76e..7e8a1b4fc080 100644
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--- a/target/s390x/arch_dump.c
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+++ b/target/s390x/arch_dump.c
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@@ -433,6 +433,22 @@ static int arch_sections_write(DumpState *s, uint8_t *buff)
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return 0;
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}
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+static void arch_cleanup(DumpState *s)
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+{
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+ g_autofree uint8_t *buff = NULL;
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+ int rc;
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+
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+ if (!pv_dump_initialized) {
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+ return;
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+ }
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+
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+ buff = g_malloc(kvm_s390_pv_dmp_get_size_completion_data());
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+ rc = kvm_s390_dump_completion_data(buff);
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+ if (!rc) {
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+ pv_dump_initialized = false;
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+ }
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+}
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+
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int cpu_get_dump_info(ArchDumpInfo *info,
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const struct GuestPhysBlockList *guest_phys_blocks)
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{
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@@ -448,6 +464,7 @@ int cpu_get_dump_info(ArchDumpInfo *info,
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info->arch_sections_add_fn = *arch_sections_add;
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info->arch_sections_write_hdr_fn = *arch_sections_write_hdr;
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info->arch_sections_write_fn = *arch_sections_write;
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+ info->arch_cleanup_fn = *arch_cleanup;
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}
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return 0;
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}
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