If userspace knows that the kernel part supports 1GB pages it can enable
the corresponding cpuid bit so that guests actually use GB pages.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/include/asm/kvm_host.h |2 ++
arch/x86/kvm/svm.c |6 ++
Joerg Roedel wrote:
If userspace knows that the kernel part supports 1GB pages it can enable
the corresponding cpuid bit so that guests actually use GB pages.
Why not do everything via KVM_GET_SUPPORTED_CPUID2 and virtualized
cpuid? We can enable it in the kernel unconditionally.
--
Do
If userspace knows that the kernel part supports 1GB pages it can enable
the corresponding cpuid bit so that guests actually use GB pages.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/include/asm/kvm_host.h |2 ++
arch/x86/kvm/svm.c |7 +++
Joerg Roedel wrote:
If userspace knows that the kernel part supports 1GB pages it can enable
the corresponding cpuid bit so that guests actually use GB pages.
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index a1df2a3..6593198 100644
---
On Sun, Mar 29, 2009 at 02:54:31PM +0300, Avi Kivity wrote:
Joerg Roedel wrote:
If userspace knows that the kernel part supports 1GB pages it can enable
the corresponding cpuid bit so that guests actually use GB pages.
diff --git a/arch/x86/include/asm/kvm_host.h
Joerg Roedel wrote:
int (*set_tss_addr)(struct kvm *kvm, unsigned int addr);
int (*get_tdp_level)(void);
int (*get_mt_mask_shift)(void);
+
+ bool (*gb_page_enable)(void);
};
Should enable unconditionally. Of course we need to find the shadow bug
first,
On Sun, Mar 29, 2009 at 03:49:11PM +0300, Avi Kivity wrote:
Joerg Roedel wrote:
int (*set_tss_addr)(struct kvm *kvm, unsigned int addr);
int (*get_tdp_level)(void);
int (*get_mt_mask_shift)(void);
+
+ bool (*gb_page_enable)(void);
};
Should enable unconditionally. Of
Joerg Roedel wrote:
Ok I will change that together with the page_size - page_level
chhanges. But I doubt that there will ever be 0.5T pages ;)
We're bloating at a rate of 1 bit per 1-2 years, so we have 8-16 years
to prepare.
--
error compiling committee.c: too many arguments to function
If userspace knows that the kernel part supports 1GB pages it can enable
the corresponding cpuid bit so that guests actually use GB pages.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/include/asm/kvm_host.h |2 ++
arch/x86/kvm/svm.c |7 +++
