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libvirt/SOURCES/libvirt-qemu-S390-does-not-provide-physical-address-size.patch

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From 5af7ae809ed21678c265a9559c9f70b90dcd31d9 Mon Sep 17 00:00:00 2001
Message-ID: <5af7ae809ed21678c265a9559c9f70b90dcd31d9.1689974710.git.jdenemar@redhat.com>
From: Boris Fiuczynski <fiuczy@linux.ibm.com>
Date: Fri, 14 Jul 2023 16:38:14 +0200
Subject: [PATCH] qemu: S390 does not provide physical address size
Commit be1b7d5b18 introduced parsing /proc/cpuinfo for "address size"
which is not including on S390 and therefore reports an internal error.
Lets remove the parsing on S390.
Signed-off-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reviewed-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Reviewed-by: Collin Walling <walling@linux.ibm.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
(cherry picked from commit 8417c1394cd4deccee07235d4f7b2c54b774b08d)
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=2224016
Signed-off-by: Boris Fiuczynski <bfiuczyn@redhat.com>
---
src/cpu/cpu_x86.c | 2 +-
src/qemu/qemu_capabilities.c | 2 +-
src/util/virhostcpu.c | 12 ++++++++++--
src/util/virhostcpu.h | 3 ++-
tests/domaincapsdata/qemu_4.2.0.s390x.xml | 1 -
tests/domaincapsdata/qemu_5.2.0.s390x.xml | 1 -
tests/domaincapsdata/qemu_6.0.0.s390x.xml | 1 -
tests/domaincapsdata/qemu_8.1.0.s390x.xml | 1 -
tests/domaincapsmock.c | 8 ++++++--
9 files changed, 20 insertions(+), 11 deletions(-)
diff --git a/src/cpu/cpu_x86.c b/src/cpu/cpu_x86.c
index 8d371d5501..3c0163c4d1 100644
--- a/src/cpu/cpu_x86.c
+++ b/src/cpu/cpu_x86.c
@@ -2795,7 +2795,7 @@ virCPUx86GetHost(virCPUDef *cpu,
VIR_DEBUG("Host CPU does not support invariant TSC");
}
- if (virHostCPUGetPhysAddrSize(&addrsz) == 0) {
+ if (virHostCPUGetPhysAddrSize(cpuData->arch, &addrsz) == 0) {
virCPUMaxPhysAddrDef *addr = g_new0(virCPUMaxPhysAddrDef, 1);
addr->bits = addrsz;
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 338608f0a2..85ea879f0b 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -3911,7 +3911,7 @@ virQEMUCapsInitHostCPUModel(virQEMUCaps *qemuCaps,
}
if (virQEMUCapsTypeIsAccelerated(type))
- virHostCPUGetPhysAddrSize(&physAddrSize);
+ virHostCPUGetPhysAddrSize(hostArch, &physAddrSize);
virQEMUCapsSetHostModel(qemuCaps, type, physAddrSize, cpu, migCPU, fullCPU);
diff --git a/src/util/virhostcpu.c b/src/util/virhostcpu.c
index 19195a1470..a15731e9ea 100644
--- a/src/util/virhostcpu.c
+++ b/src/util/virhostcpu.c
@@ -1646,10 +1646,17 @@ virHostCPUGetSignature(char **signature)
}
int
-virHostCPUGetPhysAddrSize(unsigned int *size)
+virHostCPUGetPhysAddrSize(const virArch hostArch,
+ unsigned int *size)
{
g_autoptr(FILE) cpuinfo = NULL;
+ if (ARCH_IS_S390(hostArch)) {
+ /* Ensure size is set to 0 as physical address size is unknown */
+ *size = 0;
+ return 0;
+ }
+
if (!(cpuinfo = fopen(CPUINFO_PATH, "r"))) {
virReportSystemError(errno, _("Failed to open cpuinfo file '%1$s'"),
CPUINFO_PATH);
@@ -1669,7 +1676,8 @@ virHostCPUGetSignature(char **signature)
}
int
-virHostCPUGetPhysAddrSize(unsigned int *size G_GNUC_UNUSED)
+virHostCPUGetPhysAddrSize(const virArch hostArch G_GNUC_UNUSED,
+ unsigned int *size G_GNUC_UNUSED)
{
errno = ENOSYS;
return -1;
diff --git a/src/util/virhostcpu.h b/src/util/virhostcpu.h
index 5232fee36d..5f0d43e069 100644
--- a/src/util/virhostcpu.h
+++ b/src/util/virhostcpu.h
@@ -87,7 +87,8 @@ virHostCPUTscInfo *virHostCPUGetTscInfo(void);
int virHostCPUGetSignature(char **signature);
-int virHostCPUGetPhysAddrSize(unsigned int *size);
+int virHostCPUGetPhysAddrSize(const virArch hostArch,
+ unsigned int *size);
int virHostCPUGetHaltPollTime(pid_t pid,
unsigned long long *haltPollSuccess,
diff --git a/tests/domaincapsdata/qemu_4.2.0.s390x.xml b/tests/domaincapsdata/qemu_4.2.0.s390x.xml
index da271825f9..2566f42997 100644
--- a/tests/domaincapsdata/qemu_4.2.0.s390x.xml
+++ b/tests/domaincapsdata/qemu_4.2.0.s390x.xml
@@ -38,7 +38,6 @@
</mode>
<mode name='host-model' supported='yes'>
<model fallback='forbid'>gen15a-base</model>
- <maxphysaddr mode='passthrough' limit='64'/>
<feature policy='require' name='aen'/>
<feature policy='require' name='cmmnt'/>
<feature policy='require' name='vxpdeh'/>
diff --git a/tests/domaincapsdata/qemu_5.2.0.s390x.xml b/tests/domaincapsdata/qemu_5.2.0.s390x.xml
index 99faaad866..12f38d3638 100644
--- a/tests/domaincapsdata/qemu_5.2.0.s390x.xml
+++ b/tests/domaincapsdata/qemu_5.2.0.s390x.xml
@@ -38,7 +38,6 @@
</mode>
<mode name='host-model' supported='yes'>
<model fallback='forbid'>gen15a-base</model>
- <maxphysaddr mode='passthrough' limit='64'/>
<feature policy='require' name='aen'/>
<feature policy='require' name='cmmnt'/>
<feature policy='require' name='vxpdeh'/>
diff --git a/tests/domaincapsdata/qemu_6.0.0.s390x.xml b/tests/domaincapsdata/qemu_6.0.0.s390x.xml
index df3708f801..703f729ae2 100644
--- a/tests/domaincapsdata/qemu_6.0.0.s390x.xml
+++ b/tests/domaincapsdata/qemu_6.0.0.s390x.xml
@@ -38,7 +38,6 @@
</mode>
<mode name='host-model' supported='yes'>
<model fallback='forbid'>gen15a-base</model>
- <maxphysaddr mode='passthrough' limit='64'/>
<feature policy='require' name='aen'/>
<feature policy='require' name='cmmnt'/>
<feature policy='require' name='vxpdeh'/>
diff --git a/tests/domaincapsdata/qemu_8.1.0.s390x.xml b/tests/domaincapsdata/qemu_8.1.0.s390x.xml
index d70b639503..3562e96965 100644
--- a/tests/domaincapsdata/qemu_8.1.0.s390x.xml
+++ b/tests/domaincapsdata/qemu_8.1.0.s390x.xml
@@ -38,7 +38,6 @@
</mode>
<mode name='host-model' supported='yes'>
<model fallback='forbid'>gen16a-base</model>
- <maxphysaddr mode='passthrough' limit='64'/>
<feature policy='require' name='nnpa'/>
<feature policy='require' name='aen'/>
<feature policy='require' name='cmmnt'/>
diff --git a/tests/domaincapsmock.c b/tests/domaincapsmock.c
index cecb333602..6ae0c4ad45 100644
--- a/tests/domaincapsmock.c
+++ b/tests/domaincapsmock.c
@@ -37,9 +37,13 @@ virHostCPUGetMicrocodeVersion(virArch hostArch G_GNUC_UNUSED)
}
int
-virHostCPUGetPhysAddrSize(unsigned int *size)
+virHostCPUGetPhysAddrSize(const virArch hostArch,
+ unsigned int *size)
{
- *size = 64;
+ if (ARCH_IS_S390(hostArch))
+ *size = 0;
+ else
+ *size = 64;
return 0;
}
--
2.41.0
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