qemu-devel.nongnu.org archive mirror
 help / color / mirror / Atom feed
* [PATCH] accel/kvm/kvm-all: Fixes the missing break in vCPU unpark logic
@ 2024-07-25 14:51 Salil Mehta via
  2024-07-25 19:57 ` Philippe Mathieu-Daudé
                   ` (3 more replies)
  0 siblings, 4 replies; 8+ messages in thread
From: Salil Mehta via @ 2024-07-25 14:51 UTC (permalink / raw)
  To: qemu-devel, qemu-arm, mst, peter.maydell
  Cc: salil.mehta, maz, jean-philippe, jonathan.cameron, lpieralisi,
	richard.henderson, imammedo, andrew.jones, david, philmd,
	eric.auger, oliver.upton, pbonzini, will, gshan, rafael,
	alex.bennee, linux, darren, ilkka, vishnu, karl.heubaum,
	miguel.luis, salil.mehta, zhukeqian1, wangxiongfeng2, wangyanan55,
	jiakernel2, maobibo, lixianglai, npiggin, harshpb, linuxarm

Loop should exit prematurely on successfully finding out the parked vCPU (struct
KVMParkedVcpu) in the 'struct KVMState' maintained 'kvm_parked_vcpus' list of
parked vCPUs.

Fixes: Coverity CID 1558552
Fixes: 08c3286822 ("accel/kvm: Extract common KVM vCPU {creation,parking} code")
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Message-ID: <CAFEAcA-3_d1c7XSXWkFubD-LsW5c5i95e6xxV09r2C9yGtzcdA@mail.gmail.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
---
 accel/kvm/kvm-all.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index 0aa4b4624a..c181297f00 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -362,6 +362,7 @@ int kvm_unpark_vcpu(KVMState *s, unsigned long vcpu_id)
             QLIST_REMOVE(cpu, node);
             kvm_fd = cpu->kvm_fd;
             g_free(cpu);
+            break;
         }
     }
 
-- 
2.34.1



^ permalink raw reply related	[flat|nested] 8+ messages in thread

* Re: [PATCH] accel/kvm/kvm-all: Fixes the missing break in vCPU unpark logic
  2024-07-25 14:51 [PATCH] accel/kvm/kvm-all: Fixes the missing break in vCPU unpark logic Salil Mehta via
@ 2024-07-25 19:57 ` Philippe Mathieu-Daudé
  2024-07-26  0:27 ` Gavin Shan
                   ` (2 subsequent siblings)
  3 siblings, 0 replies; 8+ messages in thread
From: Philippe Mathieu-Daudé @ 2024-07-25 19:57 UTC (permalink / raw)
  To: Salil Mehta, qemu-devel, qemu-arm, mst, peter.maydell
  Cc: maz, jean-philippe, jonathan.cameron, lpieralisi,
	richard.henderson, imammedo, andrew.jones, david, eric.auger,
	oliver.upton, pbonzini, will, gshan, rafael, alex.bennee, linux,
	darren, ilkka, vishnu, karl.heubaum, miguel.luis, salil.mehta,
	zhukeqian1, wangxiongfeng2, wangyanan55, jiakernel2, maobibo,
	lixianglai, npiggin, harshpb, linuxarm

On 25/7/24 16:51, Salil Mehta wrote:
> Loop should exit prematurely on successfully finding out the parked vCPU (struct
> KVMParkedVcpu) in the 'struct KVMState' maintained 'kvm_parked_vcpus' list of
> parked vCPUs.
> 
> Fixes: Coverity CID 1558552
> Fixes: 08c3286822 ("accel/kvm: Extract common KVM vCPU {creation,parking} code")
> Reported-by: Peter Maydell <peter.maydell@linaro.org>
> Suggested-by: Peter Maydell <peter.maydell@linaro.org>
> Message-ID: <CAFEAcA-3_d1c7XSXWkFubD-LsW5c5i95e6xxV09r2C9yGtzcdA@mail.gmail.com>
> Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
> ---
>   accel/kvm/kvm-all.c | 1 +
>   1 file changed, 1 insertion(+)

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>



^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH] accel/kvm/kvm-all: Fixes the missing break in vCPU unpark logic
  2024-07-25 14:51 [PATCH] accel/kvm/kvm-all: Fixes the missing break in vCPU unpark logic Salil Mehta via
  2024-07-25 19:57 ` Philippe Mathieu-Daudé
@ 2024-07-26  0:27 ` Gavin Shan
  2024-07-26  8:47 ` Zhao Liu
  2024-07-26  9:33 ` Igor Mammedov
  3 siblings, 0 replies; 8+ messages in thread
From: Gavin Shan @ 2024-07-26  0:27 UTC (permalink / raw)
  To: Salil Mehta, qemu-devel, qemu-arm, mst, peter.maydell
  Cc: maz, jean-philippe, jonathan.cameron, lpieralisi,
	richard.henderson, imammedo, andrew.jones, david, philmd,
	eric.auger, oliver.upton, pbonzini, will, rafael, alex.bennee,
	linux, darren, ilkka, vishnu, karl.heubaum, miguel.luis,
	salil.mehta, zhukeqian1, wangxiongfeng2, wangyanan55, jiakernel2,
	maobibo, lixianglai, npiggin, harshpb, linuxarm

On 7/26/24 12:51 AM, Salil Mehta wrote:
> Loop should exit prematurely on successfully finding out the parked vCPU (struct
> KVMParkedVcpu) in the 'struct KVMState' maintained 'kvm_parked_vcpus' list of
> parked vCPUs.
> 
> Fixes: Coverity CID 1558552
> Fixes: 08c3286822 ("accel/kvm: Extract common KVM vCPU {creation,parking} code")
> Reported-by: Peter Maydell <peter.maydell@linaro.org>
> Suggested-by: Peter Maydell <peter.maydell@linaro.org>
> Message-ID: <CAFEAcA-3_d1c7XSXWkFubD-LsW5c5i95e6xxV09r2C9yGtzcdA@mail.gmail.com>
> Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
> ---
>   accel/kvm/kvm-all.c | 1 +
>   1 file changed, 1 insertion(+)
> 

Reviewed-by: Gavin Shan <gshan@redhat.com>



^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH] accel/kvm/kvm-all: Fixes the missing break in vCPU unpark logic
  2024-07-25 14:51 [PATCH] accel/kvm/kvm-all: Fixes the missing break in vCPU unpark logic Salil Mehta via
  2024-07-25 19:57 ` Philippe Mathieu-Daudé
  2024-07-26  0:27 ` Gavin Shan
@ 2024-07-26  8:47 ` Zhao Liu
  2024-07-26  9:33 ` Igor Mammedov
  3 siblings, 0 replies; 8+ messages in thread
From: Zhao Liu @ 2024-07-26  8:47 UTC (permalink / raw)
  To: Salil Mehta
  Cc: qemu-devel, qemu-arm, mst, peter.maydell, maz, jean-philippe,
	jonathan.cameron, lpieralisi, richard.henderson, imammedo,
	andrew.jones, david, philmd, eric.auger, oliver.upton, pbonzini,
	will, gshan, rafael, alex.bennee, linux, darren, ilkka, vishnu,
	karl.heubaum, miguel.luis, salil.mehta, zhukeqian1,
	wangxiongfeng2, wangyanan55, jiakernel2, maobibo, lixianglai,
	npiggin, harshpb, linuxarm

On Thu, Jul 25, 2024 at 03:51:32PM +0100, Salil Mehta via wrote:
> Date: Thu, 25 Jul 2024 15:51:32 +0100
> From: Salil Mehta via <qemu-devel@nongnu.org>
> Subject: [PATCH] accel/kvm/kvm-all: Fixes the missing break in vCPU unpark
>  logic
> X-Mailer: git-send-email 2.34.1
> 
> Loop should exit prematurely on successfully finding out the parked vCPU (struct
> KVMParkedVcpu) in the 'struct KVMState' maintained 'kvm_parked_vcpus' list of
> parked vCPUs.
> 
> Fixes: Coverity CID 1558552
> Fixes: 08c3286822 ("accel/kvm: Extract common KVM vCPU {creation,parking} code")
> Reported-by: Peter Maydell <peter.maydell@linaro.org>
> Suggested-by: Peter Maydell <peter.maydell@linaro.org>
> Message-ID: <CAFEAcA-3_d1c7XSXWkFubD-LsW5c5i95e6xxV09r2C9yGtzcdA@mail.gmail.com>
> Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
> ---
>  accel/kvm/kvm-all.c | 1 +
>  1 file changed, 1 insertion(+)

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>



^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH] accel/kvm/kvm-all: Fixes the missing break in vCPU unpark logic
  2024-07-25 14:51 [PATCH] accel/kvm/kvm-all: Fixes the missing break in vCPU unpark logic Salil Mehta via
                   ` (2 preceding siblings ...)
  2024-07-26  8:47 ` Zhao Liu
@ 2024-07-26  9:33 ` Igor Mammedov
  2024-07-31  8:48   ` Salil Mehta via
  3 siblings, 1 reply; 8+ messages in thread
From: Igor Mammedov @ 2024-07-26  9:33 UTC (permalink / raw)
  To: Salil Mehta
  Cc: qemu-devel, qemu-arm, mst, peter.maydell, maz, jean-philippe,
	jonathan.cameron, lpieralisi, richard.henderson, andrew.jones,
	david, philmd, eric.auger, oliver.upton, pbonzini, will, gshan,
	rafael, alex.bennee, linux, darren, ilkka, vishnu, karl.heubaum,
	miguel.luis, salil.mehta, zhukeqian1, wangxiongfeng2, wangyanan55,
	jiakernel2, maobibo, lixianglai, npiggin, harshpb, linuxarm

On Thu, 25 Jul 2024 15:51:32 +0100
Salil Mehta <salil.mehta@huawei.com> wrote:

> Loop should exit prematurely on successfully finding out the parked vCPU (struct
> KVMParkedVcpu) in the 'struct KVMState' maintained 'kvm_parked_vcpus' list of
> parked vCPUs.
> 
> Fixes: Coverity CID 1558552
> Fixes: 08c3286822 ("accel/kvm: Extract common KVM vCPU {creation,parking} code")
> Reported-by: Peter Maydell <peter.maydell@linaro.org>
> Suggested-by: Peter Maydell <peter.maydell@linaro.org>
> Message-ID: <CAFEAcA-3_d1c7XSXWkFubD-LsW5c5i95e6xxV09r2C9yGtzcdA@mail.gmail.com>
> Signed-off-by: Salil Mehta <salil.mehta@huawei.com>

Reviewed-by: Igor Mammedov <imammedo@redhat.com>

> ---
>  accel/kvm/kvm-all.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
> index 0aa4b4624a..c181297f00 100644
> --- a/accel/kvm/kvm-all.c
> +++ b/accel/kvm/kvm-all.c
> @@ -362,6 +362,7 @@ int kvm_unpark_vcpu(KVMState *s, unsigned long vcpu_id)
>              QLIST_REMOVE(cpu, node);
>              kvm_fd = cpu->kvm_fd;
>              g_free(cpu);
> +            break;
>          }
>      }
>  



^ permalink raw reply	[flat|nested] 8+ messages in thread

* RE: [PATCH] accel/kvm/kvm-all: Fixes the missing break in vCPU unpark logic
  2024-07-26  9:33 ` Igor Mammedov
@ 2024-07-31  8:48   ` Salil Mehta via
  2024-07-31 11:39     ` Peter Maydell
  0 siblings, 1 reply; 8+ messages in thread
From: Salil Mehta via @ 2024-07-31  8:48 UTC (permalink / raw)
  To: Igor Mammedov, Michael S. Tsirkin, peter.maydell@linaro.org
  Cc: qemu-devel@nongnu.org, qemu-arm@nongnu.org, mst@redhat.com,
	peter.maydell@linaro.org, maz@kernel.org,
	jean-philippe@linaro.org, Jonathan Cameron, lpieralisi@kernel.org,
	richard.henderson@linaro.org, andrew.jones@linux.dev,
	david@redhat.com, philmd@linaro.org, eric.auger@redhat.com,
	oliver.upton@linux.dev, pbonzini@redhat.com, will@kernel.org,
	gshan@redhat.com, rafael@kernel.org, alex.bennee@linaro.org,
	linux@armlinux.org.uk, darren@os.amperecomputing.com,
	ilkka@os.amperecomputing.com, vishnu@os.amperecomputing.com,
	karl.heubaum@oracle.com, miguel.luis@oracle.com,
	salil.mehta@opnsrc.net, zhukeqian, wangxiongfeng (C),
	wangyanan (Y), jiakernel2@gmail.com, maobibo@loongson.cn,
	lixianglai@loongson.cn, npiggin@gmail.com, harshpb@linux.ibm.com,
	Linuxarm

Hello,

A quick check and a gentle reminder, has this patch been accepted?

Best regards
Salil.

>  From: Igor Mammedov <imammedo@redhat.com>
>  Sent: Friday, July 26, 2024 10:34 AM
>  To: Salil Mehta <salil.mehta@huawei.com>
>  
>  On Thu, 25 Jul 2024 15:51:32 +0100
>  Salil Mehta <salil.mehta@huawei.com> wrote:
>  
>  > Loop should exit prematurely on successfully finding out the parked
>  > vCPU (struct
>  > KVMParkedVcpu) in the 'struct KVMState' maintained
>  'kvm_parked_vcpus'
>  > list of parked vCPUs.
>  >
>  > Fixes: Coverity CID 1558552
>  > Fixes: 08c3286822 ("accel/kvm: Extract common KVM vCPU
>  > {creation,parking} code")
>  > Reported-by: Peter Maydell <peter.maydell@linaro.org>
>  > Suggested-by: Peter Maydell <peter.maydell@linaro.org>
>  > Message-ID:
>  > <CAFEAcA-3_d1c7XSXWkFubD-
>  LsW5c5i95e6xxV09r2C9yGtzcdA@mail.gmail.com>
>  > Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
>  
>  Reviewed-by: Igor Mammedov <imammedo@redhat.com>
>  
>  > ---
>  >  accel/kvm/kvm-all.c | 1 +
>  >  1 file changed, 1 insertion(+)
>  >
>  > diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index
>  > 0aa4b4624a..c181297f00 100644
>  > --- a/accel/kvm/kvm-all.c
>  > +++ b/accel/kvm/kvm-all.c
>  > @@ -362,6 +362,7 @@ int kvm_unpark_vcpu(KVMState *s, unsigned long
>  vcpu_id)
>  >              QLIST_REMOVE(cpu, node);
>  >              kvm_fd = cpu->kvm_fd;
>  >              g_free(cpu);
>  > +            break;
>  >          }
>  >      }
>  >
>  



^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH] accel/kvm/kvm-all: Fixes the missing break in vCPU unpark logic
  2024-07-31  8:48   ` Salil Mehta via
@ 2024-07-31 11:39     ` Peter Maydell
  2024-07-31 12:32       ` Salil Mehta via
  0 siblings, 1 reply; 8+ messages in thread
From: Peter Maydell @ 2024-07-31 11:39 UTC (permalink / raw)
  To: Salil Mehta
  Cc: Igor Mammedov, Michael S. Tsirkin, qemu-devel@nongnu.org,
	qemu-arm@nongnu.org, mst@redhat.com, maz@kernel.org,
	jean-philippe@linaro.org, Jonathan Cameron, lpieralisi@kernel.org,
	richard.henderson@linaro.org, andrew.jones@linux.dev,
	david@redhat.com, philmd@linaro.org, eric.auger@redhat.com,
	oliver.upton@linux.dev, pbonzini@redhat.com, will@kernel.org,
	gshan@redhat.com, rafael@kernel.org, alex.bennee@linaro.org,
	linux@armlinux.org.uk, darren@os.amperecomputing.com,
	ilkka@os.amperecomputing.com, vishnu@os.amperecomputing.com,
	karl.heubaum@oracle.com, miguel.luis@oracle.com,
	salil.mehta@opnsrc.net, zhukeqian, wangxiongfeng (C),
	wangyanan (Y), jiakernel2@gmail.com, maobibo@loongson.cn,
	lixianglai@loongson.cn, npiggin@gmail.com, harshpb@linux.ibm.com,
	Linuxarm

On Wed, 31 Jul 2024 at 09:49, Salil Mehta <salil.mehta@huawei.com> wrote:
>
> Hello,
>
> A quick check and a gentle reminder, has this patch been accepted?

Thanks for the ping. I'm doing a target-arm pullreq tomorrow
so I'll take it via my queue.

-- PMM


^ permalink raw reply	[flat|nested] 8+ messages in thread

* RE: [PATCH] accel/kvm/kvm-all: Fixes the missing break in vCPU unpark logic
  2024-07-31 11:39     ` Peter Maydell
@ 2024-07-31 12:32       ` Salil Mehta via
  0 siblings, 0 replies; 8+ messages in thread
From: Salil Mehta via @ 2024-07-31 12:32 UTC (permalink / raw)
  To: Peter Maydell
  Cc: Igor Mammedov, Michael S. Tsirkin, qemu-devel@nongnu.org,
	qemu-arm@nongnu.org, mst@redhat.com, maz@kernel.org,
	jean-philippe@linaro.org, Jonathan Cameron, lpieralisi@kernel.org,
	richard.henderson@linaro.org, andrew.jones@linux.dev,
	david@redhat.com, philmd@linaro.org, eric.auger@redhat.com,
	oliver.upton@linux.dev, pbonzini@redhat.com, will@kernel.org,
	gshan@redhat.com, rafael@kernel.org, alex.bennee@linaro.org,
	linux@armlinux.org.uk, darren@os.amperecomputing.com,
	ilkka@os.amperecomputing.com, vishnu@os.amperecomputing.com,
	karl.heubaum@oracle.com, miguel.luis@oracle.com,
	salil.mehta@opnsrc.net, zhukeqian, wangxiongfeng (C),
	wangyanan (Y), jiakernel2@gmail.com, maobibo@loongson.cn,
	lixianglai@loongson.cn, npiggin@gmail.com, harshpb@linux.ibm.com,
	Linuxarm

>  From: Peter Maydell <peter.maydell@linaro.org>
>  Sent: Wednesday, July 31, 2024 12:39 PM
>  To: Salil Mehta <salil.mehta@huawei.com>
>  
>  On Wed, 31 Jul 2024 at 09:49, Salil Mehta <salil.mehta@huawei.com> wrote:
>  >
>  > Hello,
>  >
>  > A quick check and a gentle reminder, has this patch been accepted?
>  
>  Thanks for the ping. I'm doing a target-arm pullreq tomorrow so I'll take it via
>  my queue.

Great. Thanks!

Best regards
Salil.

>  
>  -- PMM

^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2024-07-31 12:33 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2024-07-25 14:51 [PATCH] accel/kvm/kvm-all: Fixes the missing break in vCPU unpark logic Salil Mehta via
2024-07-25 19:57 ` Philippe Mathieu-Daudé
2024-07-26  0:27 ` Gavin Shan
2024-07-26  8:47 ` Zhao Liu
2024-07-26  9:33 ` Igor Mammedov
2024-07-31  8:48   ` Salil Mehta via
2024-07-31 11:39     ` Peter Maydell
2024-07-31 12:32       ` Salil Mehta via

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).