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qemu_capabilities: Introduce QEMU_CAPS_OVERCOMMIT

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Added in QEMU commit of v3.0.0-rc0~48^2~9 (then fixed by
v3.1.0-rc0~119^2~37) QEMU is replacing '-realtime mlock' with
'-overcommit mem-lock'. Add a capability to tell if we're dealing
new new enough qemu to use the replacement.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Michal Privoznik 2019-04-12 10:16:06 +02:00
parent a08c4b3741
commit be51feff69
7 changed files with 8 additions and 0 deletions
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2
src/qemu/qemu_capabilities.c
View File

@ -525,6 +525,7 @@ VIR_ENUM_IMPL(virQEMUCaps,
"nvdimm.unarmed",
"scsi-disk.device_id",
"virtio-pci-non-transitional",
"overcommit",
);
@ -2659,6 +2660,7 @@ static struct virQEMUCapsCommandLineProps virQEMUCapsCommandLine[] = {
{ "sandbox", "enable", QEMU_CAPS_SECCOMP_SANDBOX },
{ "sandbox", "elevateprivileges", QEMU_CAPS_SECCOMP_BLACKLIST },
{ "chardev", "fd", QEMU_CAPS_CHARDEV_FD_PASS },
{ "overcommit", NULL, QEMU_CAPS_OVERCOMMIT },
};
static int

1
src/qemu/qemu_capabilities.h
View File

@ -507,6 +507,7 @@ typedef enum { /* virQEMUCapsFlags grouping marker for syntax-check */
QEMU_CAPS_DEVICE_NVDIMM_UNARMED, /* -device nvdimm,unarmed= */
QEMU_CAPS_SCSI_DISK_DEVICE_ID, /* 'device_id' property of scsi disk */
QEMU_CAPS_VIRTIO_PCI_TRANSITIONAL, /* virtio *-pci-{non-}transitional devices */
QEMU_CAPS_OVERCOMMIT, /* -overcommit */
QEMU_CAPS_LAST /* this must always be the last item */
} virQEMUCapsFlags;

1
tests/qemucapabilitiesdata/caps_3.1.0.ppc64.xml
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@ -155,6 +155,7 @@
<flag name='machine.pseries.cap-nested-hv'/>
<flag name='memory-backend-file.align'/>
<flag name='memory-backend-file.pmem'/>
<flag name='overcommit'/>
<version>3000091</version>
<kvmVersion>0</kvmVersion>
<microcodeVersion>42900758</microcodeVersion>

1
tests/qemucapabilitiesdata/caps_3.1.0.x86_64.xml
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@ -199,6 +199,7 @@
<flag name='memory-backend-file.align'/>
<flag name='memory-backend-file.pmem'/>
<flag name='nvdimm.unarmed'/>
<flag name='overcommit'/>
<version>3000092</version>
<kvmVersion>0</kvmVersion>
<microcodeVersion>43100758</microcodeVersion>

1
tests/qemucapabilitiesdata/caps_4.0.0.riscv32.xml
View File

@ -162,6 +162,7 @@
<flag name='memory-backend-file.pmem'/>
<flag name='scsi-disk.device_id'/>
<flag name='virtio-pci-non-transitional'/>
<flag name='overcommit'/>
<version>3001091</version>
<kvmVersion>0</kvmVersion>
<microcodeVersion>0</microcodeVersion>

1
tests/qemucapabilitiesdata/caps_4.0.0.riscv64.xml
View File

@ -162,6 +162,7 @@
<flag name='memory-backend-file.pmem'/>
<flag name='scsi-disk.device_id'/>
<flag name='virtio-pci-non-transitional'/>
<flag name='overcommit'/>
<version>3001091</version>
<kvmVersion>0</kvmVersion>
<microcodeVersion>0</microcodeVersion>

1
tests/qemucapabilitiesdata/caps_4.0.0.x86_64.xml
View File

@ -200,6 +200,7 @@
<flag name='nvdimm.unarmed'/>
<flag name='scsi-disk.device_id'/>
<flag name='virtio-pci-non-transitional'/>
<flag name='overcommit'/>
<version>3001050</version>
<kvmVersion>0</kvmVersion>
<microcodeVersion>43100758</microcodeVersion>