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From: Greg Kurz <groug@kaod.org>
To: David Gibson <david@gibson.dropbear.id.au>
Cc: "Laurent Vivier" <lvivier@redhat.com>,
	qemu-ppc@nongnu.org,
	"Satheesh Rajendran" <sathnaga@linux.vnet.ibm.com>,
	"Cédric Le Goater" <clg@kaod.org>,
	qemu-devel@nongnu.org
Subject: [for-5.0 PATCH 4/4] ppc: Ignore the CPU_INTERRUPT_EXITTB interrupt with KVM
Date: Wed, 04 Dec 2019 20:43:54 +0100
Message-ID: <157548863423.3650476.16424649423510075159.stgit@bahia.lan> (raw)
In-Reply-To: <157548861171.3650476.14824062174573272058.stgit@bahia.lan>

This only makes sense with an emulated CPU. Don't set the bit in
CPUState::interrupt_request when using KVM to avoid confusions.

Signed-off-by: Greg Kurz <groug@kaod.org>
---
 target/ppc/helper_regs.h |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/target/ppc/helper_regs.h b/target/ppc/helper_regs.h
index 85dfe7687fbb..d78c2af63eac 100644
--- a/target/ppc/helper_regs.h
+++ b/target/ppc/helper_regs.h
@@ -22,6 +22,7 @@
 
 #include "qemu/main-loop.h"
 #include "exec/exec-all.h"
+#include "sysemu/kvm.h"
 
 /* Swap temporary saved registers with GPRs */
 static inline void hreg_swap_gpr_tgpr(CPUPPCState *env)
@@ -102,6 +103,10 @@ static inline void hreg_compute_hflags(CPUPPCState *env)
 
 static inline void cpu_interrupt_exittb(CPUState *cs)
 {
+    if (!kvm_enabled()) {
+        return;
+    }
+
     if (!qemu_mutex_iothread_locked()) {
         qemu_mutex_lock_iothread();
         cpu_interrupt(cs, CPU_INTERRUPT_EXITTB);



  parent reply index

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-04 19:43 [for-5.0 PATCH 0/4] ppc: Fix interrupt controller emulation Greg Kurz
2019-12-04 19:43 ` [for-5.0 PATCH 1/4] ppc: Deassert the external interrupt pin in KVM on reset Greg Kurz
2019-12-04 19:43 ` [for-5.0 PATCH 2/4] xics: Don't deassert outputs Greg Kurz
2019-12-04 19:43 ` [for-5.0 PATCH 3/4] ppc: Don't use CPUPPCState::irq_input_state with modern Book3s CPU models Greg Kurz
2019-12-04 19:43 ` Greg Kurz [this message]
2019-12-09  1:14 ` [for-5.0 PATCH 0/4] ppc: Fix interrupt controller emulation David Gibson

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