From: Alexander Graf <graf@amazon.com>
To: Filippo Sironi <sironi@amazon.de>,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
borntraeger@de.ibm.com, boris.ostrovsky@oracle.com,
cohuck@redhat.com, konrad.wilk@oracle.com,
xen-devel@lists.xenproject.org, vasu.srinivasan@oracle.com
Subject: Re: [PATCH v2 2/2] KVM: x86: Implement the arch-specific hook to report the VM UUID
Date: Thu, 16 May 2019 06:56:01 -0700 [thread overview]
Message-ID: <f51a6a84-b21c-ab75-7e30-bfbe2ac6b98b__46823.3555716992$1558015024$gmane$org@amazon.com> (raw)
In-Reply-To: <1557847002-23519-3-git-send-email-sironi@amazon.de>
On 14.05.19 08:16, Filippo Sironi wrote:
> On x86, we report the UUID in DMI System Information (i.e., DMI Type 1)
> as VM UUID.
>
> Signed-off-by: Filippo Sironi <sironi@amazon.de>
> ---
> arch/x86/kernel/kvm.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
> index 5c93a65ee1e5..441cab08a09d 100644
> --- a/arch/x86/kernel/kvm.c
> +++ b/arch/x86/kernel/kvm.c
> @@ -25,6 +25,7 @@
> #include <linux/kernel.h>
> #include <linux/kvm_para.h>
> #include <linux/cpu.h>
> +#include <linux/dmi.h>
> #include <linux/mm.h>
> #include <linux/highmem.h>
> #include <linux/hardirq.h>
> @@ -694,6 +695,12 @@ bool kvm_para_available(void)
> }
> EXPORT_SYMBOL_GPL(kvm_para_available);
>
> +const char *kvm_para_get_uuid(void)
> +{
> + return dmi_get_system_info(DMI_PRODUCT_UUID);
This adds a new dependency on CONFIG_DMI. Probably best to guard it with
an #if IS_ENABLED(CONFIG_DMI).
The concept seems sound though.
Alex
> +}
> +EXPORT_SYMBOL_GPL(kvm_para_get_uuid);
> +
> unsigned int kvm_arch_para_features(void)
> {
> return cpuid_eax(kvm_cpuid_base() | KVM_CPUID_FEATURES);
>
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next prev parent reply other threads:[~2019-05-16 13:56 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1539078879-4372-1-git-send-email-sironi@amazon.de>
[not found] ` <c81b65ba-c562-1869-483b-aee5229501e0@de.ibm.com>
2018-10-09 16:21 ` [PATCH] KVM: Start populating /sys/hypervisor with KVM entries Boris Ostrovsky
[not found] ` <61740f41-c7e3-edaf-68ac-2e4c4a99523b@oracle.com>
2018-10-09 17:50 ` Cornelia Huck
2019-05-14 15:16 ` [Xen-devel] " Filippo Sironi
2019-05-14 15:16 ` [Xen-devel] [PATCH v2 1/2] " Filippo Sironi
2019-05-14 15:26 ` Christian Borntraeger
2019-05-14 16:09 ` Sironi, Filippo
2019-05-14 16:09 ` [Xen-devel] " Sironi, Filippo
2019-05-14 16:31 ` Christian Borntraeger
2019-05-14 16:31 ` [Xen-devel] " Christian Borntraeger
2019-05-14 22:08 ` Sironi, Filippo
2019-05-14 22:08 ` [Xen-devel] " Sironi, Filippo
2019-05-14 15:26 ` Christian Borntraeger
2019-05-16 13:50 ` [Xen-devel] " Alexander Graf
2019-05-16 14:02 ` Andrew Cooper
2019-05-16 14:02 ` [Xen-devel] " Andrew Cooper
2019-05-16 14:08 ` Alexander Graf
2019-05-16 14:08 ` [Xen-devel] " Alexander Graf
2019-05-16 15:02 ` Boris Ostrovsky
2019-05-16 15:14 ` Sironi, Filippo
2019-05-16 15:14 ` [Xen-devel] " Sironi, Filippo
2019-05-16 15:02 ` Boris Ostrovsky
2019-05-17 15:41 ` [Xen-devel] " Sironi, Filippo
2019-05-31 9:06 ` Alexander Graf
2019-05-31 9:12 ` Raslan, KarimAllah
2019-05-31 9:26 ` Alexander Graf
2019-05-31 9:26 ` Alexander Graf
2019-05-31 9:38 ` [Xen-devel] " Marc Zyngier
2019-05-31 9:38 ` Marc Zyngier
2019-05-31 9:12 ` Raslan, KarimAllah
2019-05-31 9:06 ` Alexander Graf
2019-05-17 15:41 ` Sironi, Filippo
2019-05-16 13:50 ` Alexander Graf
2019-05-14 15:16 ` Filippo Sironi
2019-05-14 15:16 ` [Xen-devel] [PATCH v2 2/2] KVM: x86: Implement the arch-specific hook to report the VM UUID Filippo Sironi
2019-05-16 13:56 ` Alexander Graf
2019-05-16 15:25 ` Sironi, Filippo
2019-05-16 15:33 ` Alexander Graf
2019-05-16 16:40 ` Boris Ostrovsky
2019-05-16 17:41 ` Sironi, Filippo
2019-05-16 17:49 ` Alexander Graf
2019-05-16 17:49 ` Alexander Graf
2019-05-16 17:41 ` Sironi, Filippo
2019-05-16 16:40 ` Boris Ostrovsky
2019-05-16 15:33 ` Alexander Graf
2019-05-16 15:25 ` Sironi, Filippo
2019-05-16 13:56 ` Alexander Graf [this message]
2019-05-14 15:16 ` Filippo Sironi
2019-05-14 15:16 ` KVM: Start populating /sys/hypervisor with KVM entries Filippo Sironi
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