kernel.git/arch/x86/kernel/kvm.c, branch linux-2.6.28.y

x86, paravirt_ops: use unsigned long instead of u32 for alloc_p*() pfn args

2008-08-22T03:34:44Z

This patch changes the pfn args from 'u32' to 'unsigned long' on alloc_p*() functions on paravirt_ops, and the corresponding implementations for Xen and VMI. The prototypes for CONFIG_PARAVIRT=n are already using unsigned long, so paravirt.h now matches the prototypes on asm-x86/pgalloc.h. It shouldn't result in any changes on generated code on 32-bit, with or without CONFIG_PARAVIRT. On both cases, 'codiff -f' didn't show any change after applying this patch. On 64-bit, there are (expected) binary changes only when CONFIG_PARAVIRT is enabled, as the patch is really supposed to change the size of the pfn args. [ v2: KVM_GUEST: use the right parameter type on kvm_release_pt() ] Signed-off-by: Eduardo Habkost Acked-by: Jeremy Fitzhardinge Acked-by: Zachary Amsden Signed-off-by: Ingo Molnar

x86: KVM guest: hypercall batching

2008-04-27T09:00:28Z

Batch pte updates and tlb flushes in lazy MMU mode. [avi: - adjust to mmu_op - helper for getting para_state without debug warnings] Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity

x86: KVM guest: hypercall based pte updates and TLB flushes

2008-04-27T09:00:28Z

Hypercall based pte updates are faster than faults, and also allow use of the lazy MMU mode to batch operations. Don't report the feature if two dimensional paging is enabled. [avi: - guest/host split - fix 32-bit truncation issues - adjust to mmu_op - adjust to ->release_*() renamed - add ->release_pud()] Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity

x86: KVM guest: add basic paravirt support

2008-04-27T09:00:25Z

Add basic KVM paravirt support. Avoid vm-exits on IO delays. Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity