[v9] whpx: i386: bug fixes, feature probing and CPUID

[PATCH v9 12/13] whpx: i386: disable enlightenments and LAPIC for isapc

Mohamed Mediouni posted 13 patches 4 days, 3 hours ago

Diff against v5 v6 v7 v8
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Maintainers: Pedro Barbuda <pbarbuda@microsoft.com>, Mohamed Mediouni <mohamed@unpredictable.fr>, Peter Maydell <peter.maydell@linaro.org>, Paolo Bonzini <pbonzini@redhat.com>, Zhao Liu <zhao1.liu@intel.com>, Roman Bolshakov <rbolshakov@ddn.com>, Phil Dennis-Jordan <phil@philjordan.eu>, Wei Liu <wei.liu@kernel.org>

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[PATCH v9 12/13] whpx: i386: disable enlightenments and LAPIC for isapc

Posted by Mohamed Mediouni 4 days, 3 hours ago

The isapc machine doesn't have an APIC. And Hyper-V enlightenments
don't sound too useful to have there so disable those.

Signed-off-by: Mohamed Mediouni <mohamed@unpredictable.fr>
---
 target/i386/whpx/whpx-all.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/target/i386/whpx/whpx-all.c b/target/i386/whpx/whpx-all.c
index 61aec98e66..7a31dc6427 100644
--- a/target/i386/whpx/whpx-all.c
+++ b/target/i386/whpx/whpx-all.c
@@ -2470,6 +2470,14 @@ int whpx_accel_init(AccelState *as, MachineState *ms)
         goto error;
     }
 
+    /* for isapc, disable Hyper-V enlightenments and LAPIC */
+    if (!strcmp(MACHINE_GET_CLASS(ms)->name, "isapc")) {
+        whpx->kernel_irqchip_allowed = false;
+        whpx->kernel_irqchip_required = false;
+        whpx->hyperv_enlightenments_allowed = false;
+        whpx->hyperv_enlightenments_required = false;
+    }
+
     whpx->mem_quota = ms->ram_size;
 
     hr = whp_dispatch.WHvGetCapability(
-- 
2.50.1 (Apple Git-155)