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From ab9d2e264ba8a544eadb9e1b72a4a5d0f4789815 Mon Sep 17 00:00:00 2001
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Message-Id: <ab9d2e264ba8a544eadb9e1b72a4a5d0f4789815@dist-git>
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From: Andrea Bolognani <abologna@redhat.com>
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Date: Mon, 17 Sep 2018 18:00:50 +0200
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Subject: [PATCH] qemu: Drop QEMU_CAPS_ENABLE_KVM
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It was already available in 1.5.0.
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Moreover, we're not even formatting it on the QEMU command
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line, ever: we just use it as part of some logic that decides
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whether KVM support should be advertised, and as it turns out
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that logic is actually buggy and dropping this capability
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fixes it.
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https://bugzilla.redhat.com/show_bug.cgi?id=1628469
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Signed-off-by: Andrea Bolognani <abologna@redhat.com>
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Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
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(cherry picked from commit 88983855d5496a74b97551860db737c2b17b100e)
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https://bugzilla.redhat.com/show_bug.cgi?id=1629862
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Signed-off-by: Andrea Bolognani <abologna@redhat.com>
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Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
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---
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 src/qemu/qemu_capabilities.c |  3 ---
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 src/qemu/qemu_capabilities.h |  2 +-
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 tests/qemuxml2argvtest.c     | 11 +++++------
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 3 files changed, 6 insertions(+), 10 deletions(-)
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diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
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index 1321696d11..14d7b8fbf7 100644
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--- a/src/qemu/qemu_capabilities.c
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+++ b/src/qemu/qemu_capabilities.c
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@@ -834,7 +834,6 @@ virQEMUCapsInitGuestFromBinary(virCapsPtr caps,
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     if (virFileExists("/dev/kvm") &&
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         (virQEMUCapsGet(qemubinCaps, QEMU_CAPS_KVM) ||
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-         virQEMUCapsGet(qemubinCaps, QEMU_CAPS_ENABLE_KVM) ||
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          kvmbin))
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         haskvm = true;
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@@ -2603,7 +2602,6 @@ virQEMUCapsProbeQMPKVMState(virQEMUCapsPtr qemuCaps,
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         virQEMUCapsClear(qemuCaps, QEMU_CAPS_KVM);
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     } else if (!enabled) {
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         virQEMUCapsClear(qemuCaps, QEMU_CAPS_KVM);
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-        virQEMUCapsSet(qemuCaps, QEMU_CAPS_ENABLE_KVM);
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     }
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     return 0;
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@@ -3911,7 +3909,6 @@ virQEMUCapsIsValid(void *data,
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                                     priv->runUid, priv->runGid) == 0;
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     if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM) &&
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-        virQEMUCapsGet(qemuCaps, QEMU_CAPS_ENABLE_KVM) &&
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         kvmUsable) {
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         VIR_DEBUG("KVM was not enabled when probing '%s', "
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                   "but it should be usable now",
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diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
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index 9e8ad5f5c3..98668115d6 100644
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--- a/src/qemu/qemu_capabilities.h
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+++ b/src/qemu/qemu_capabilities.h
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@@ -79,7 +79,7 @@ typedef enum { /* virQEMUCapsFlags grouping marker for syntax-check */
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     X_QEMU_CAPS_XEN_DOMID, /* -xen-domid */
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     X_QEMU_CAPS_MIGRATE_QEMU_UNIX, /* qemu migration via unix sockets */
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     X_QEMU_CAPS_CHARDEV, /* Is the new -chardev arg available */
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-    QEMU_CAPS_ENABLE_KVM, /* -enable-kvm flag */
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+    X_QEMU_CAPS_ENABLE_KVM, /* -enable-kvm flag */
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     X_QEMU_CAPS_MONITOR_JSON, /* JSON mode for monitor */
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     /* 25 */
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diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
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index ebe9c8a131..13e95fe28a 100644
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--- a/tests/qemuxml2argvtest.c
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+++ b/tests/qemuxml2argvtest.c
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@@ -912,16 +912,15 @@ mymain(void)
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     DO_TEST("clock-france", NONE);
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     DO_TEST("clock-hpet-off", NONE);
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     DO_TEST("clock-catchup", QEMU_CAPS_KVM_PIT_TICK_POLICY);
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-    DO_TEST("cpu-kvmclock", QEMU_CAPS_ENABLE_KVM);
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-    DO_TEST("cpu-host-kvmclock", QEMU_CAPS_ENABLE_KVM);
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+    DO_TEST("cpu-kvmclock", NONE);
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+    DO_TEST("cpu-host-kvmclock", NONE);
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     DO_TEST("kvmclock", QEMU_CAPS_KVM);
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     DO_TEST("clock-timer-hyperv-rtc", QEMU_CAPS_KVM);
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-    DO_TEST("cpu-eoi-disabled", QEMU_CAPS_ENABLE_KVM);
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-    DO_TEST("cpu-eoi-enabled", QEMU_CAPS_ENABLE_KVM);
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+    DO_TEST("cpu-eoi-disabled", NONE);
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+    DO_TEST("cpu-eoi-enabled", NONE);
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     DO_TEST("controller-order",
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             QEMU_CAPS_KVM,
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-            QEMU_CAPS_ENABLE_KVM,
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             QEMU_CAPS_PIIX3_USB_UHCI,
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             QEMU_CAPS_CCID_PASSTHRU,
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             QEMU_CAPS_SPICE,
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@@ -933,7 +932,7 @@ mymain(void)
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     DO_TEST("eoi-enabled", NONE);
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     DO_TEST("pv-spinlock-disabled", NONE);
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     DO_TEST("pv-spinlock-enabled", NONE);
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-    DO_TEST("kvmclock+eoi-disabled", QEMU_CAPS_ENABLE_KVM);
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+    DO_TEST("kvmclock+eoi-disabled", NONE);
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     DO_TEST("hyperv", NONE);
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     DO_TEST("hyperv-off", NONE);
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-- 
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2.19.1
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