From: Avi Kivity <avi@qumranet.com>
To: linux-kernel@vger.kernel.org, kvm-devel@lists.sourceforge.net
Subject: [PATCH 03/55] KVM: Add a might_sleep() annotation to gfn_to_page()
Date: Wed, 26 Dec 2007 13:05:08 +0200 [thread overview]
Message-ID: <1198667160-22953-4-git-send-email-avi@qumranet.com> (raw)
In-Reply-To: <1198667160-22953-1-git-send-email-avi@qumranet.com>
This will help trap accesses to guest memory in atomic context.
Signed-off-by: Avi Kivity <avi@qumranet.com>
---
drivers/kvm/kvm_main.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index ff77175..005f2d5 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -993,6 +993,8 @@ struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn)
struct page *page[1];
int npages;
+ might_sleep();
+
gfn = unalias_gfn(kvm, gfn);
slot = __gfn_to_memslot(kvm, gfn);
if (!slot) {
--
1.5.3.7
next prev parent reply other threads:[~2007-12-26 11:07 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-26 11:05 [PATCH 00/55] KVM patch queue review for 2.6.25 merge window (part II) Avi Kivity
2007-12-26 11:05 ` [PATCH 01/55] KVM: Portability: Split kvm_vcpu into arch dependent and independent parts (part 1) Avi Kivity
2007-12-26 11:05 ` [PATCH 02/55] KVM: Move vmx_vcpu_reset() out of vmx_vcpu_setup() Avi Kivity
2007-12-26 11:05 ` Avi Kivity [this message]
2007-12-26 11:05 ` [PATCH 04/55] KVM: Export PIC reset for kernel device reset Avi Kivity
2007-12-26 11:05 ` [PATCH 05/55] KVM: Split IOAPIC reset function and export for kernel RESET Avi Kivity
2007-12-26 11:05 ` [PATCH 06/55] KVM: Per-architecture hypercall definitions Avi Kivity
2007-12-26 19:32 ` Pavel Machek
2007-12-27 7:03 ` Avi Kivity
2007-12-26 11:05 ` [PATCH 07/55] KVM: Unmap kernel-allocated memory on slot destruction Avi Kivity
2007-12-26 11:05 ` [PATCH 08/55] KVM: Export memory slot allocation mechanism Avi Kivity
2007-12-26 11:05 ` [PATCH 09/55] KVM: Add kernel-internal memory slots Avi Kivity
2007-12-26 11:05 ` [PATCH 10/55] KVM: Add ioctl to tss address from userspace, Avi Kivity
2007-12-26 11:05 ` [PATCH 11/55] KVM: VMX: Let gcc to choose which registers to save (x86_64) Avi Kivity
2007-12-26 11:05 ` [PATCH 12/55] KVM: VMX: Let gcc to choose which registers to save (i386) Avi Kivity
2007-12-26 11:05 ` [PATCH 13/55] KVM: SVM: Let gcc to choose which registers to save (x86_64) Avi Kivity
2007-12-26 11:05 ` [PATCH 14/55] KVM: SVM: Let gcc to choose which registers to save (i386) Avi Kivity
2007-12-26 11:05 ` [PATCH 15/55] KVM: x86 emulator: don't depend on cr2 for mov abs emulation Avi Kivity
2007-12-26 11:05 ` [PATCH 16/55] KVM: Move page fault processing to common code Avi Kivity
2007-12-26 11:05 ` [PATCH 17/55] KVM: MMU: Topup the mmu memory preallocation caches before emulating an insn Avi Kivity
2007-12-26 11:05 ` [PATCH 18/55] KVM: Portability: Split kvm_vm_ioctl v3 Avi Kivity
2007-12-26 11:05 ` [PATCH 19/55] KVM: Portability: Move memory segmentation to x86.c Avi Kivity
2007-12-26 11:05 ` [PATCH 20/55] KVM: Portability: move get/set_apic_base " Avi Kivity
2007-12-26 11:05 ` [PATCH 21/55] KVM: Portability: Move control register helper functions " Avi Kivity
2007-12-26 11:05 ` [PATCH 22/55] KVM: VMX: Enable memory mapped TPR shadow (FlexPriority) Avi Kivity
2007-12-26 11:05 ` [PATCH 23/55] KVM: Fix gfn_to_page() acquiring mmap_sem twice Avi Kivity
2007-12-26 11:05 ` [PATCH 24/55] KVM: Portability: Move kvm_get/set_msr[_common] to x86.c Avi Kivity
2007-12-26 11:05 ` [PATCH 25/55] KVM: Portability: Move x86 emulation and mmio device hook " Avi Kivity
2007-12-26 11:05 ` [PATCH 26/55] KVM: Portability: Move pio emulation functions " Avi Kivity
2007-12-26 11:05 ` [PATCH 27/55] KVM: x86 emulator: Extract the common code of SrcReg and DstReg Avi Kivity
2007-12-26 11:05 ` [PATCH 28/55] KVM: x86 emulator: centralize decoding of one-byte register access insns Avi Kivity
2007-12-26 11:05 ` [PATCH 29/55] KVM: Simplify decode_register_operand() calling convention Avi Kivity
2007-12-26 11:05 ` [PATCH 30/55] KVM: Make mark_page_dirty() work for aliased pages too Avi Kivity
2007-12-26 11:05 ` [PATCH 31/55] KVM: x86 emulator: Hoist modrm and abs decoding into separate functions Avi Kivity
2007-12-26 11:05 ` [PATCH 32/55] KVM: Portability: Make exported debugfs data architecture-specific Avi Kivity
2007-12-26 11:05 ` [PATCH 33/55] KVM: Portability: Move x86 instruction emulation code to x86.c Avi Kivity
2007-12-26 11:05 ` [PATCH 34/55] KVM: Portability: Move x86 FPU handling " Avi Kivity
2007-12-26 11:05 ` [PATCH 35/55] KVM: Portability: Move x86 vcpu ioctl handlers " Avi Kivity
2007-12-26 11:05 ` [PATCH 36/55] KVM: Add make_page_dirty() to kvm_clear_guest_page() Avi Kivity
2007-12-26 11:05 ` [PATCH 37/55] KVM: VMX: Use vmx to inject real-mode interrupts Avi Kivity
2007-12-26 11:05 ` [PATCH 38/55] KVM: VMX: Read & store IDT_VECTORING_INFO_FIELD Avi Kivity
2007-12-26 11:05 ` [PATCH 39/55] KVM: Fix faults during injection of real-mode interrupts Avi Kivity
2007-12-26 11:05 ` [PATCH 40/55] KVM: VMX: Comment VMX primary/secondary exec ctl definitions Avi Kivity
2007-12-26 11:05 ` [PATCH 41/55] KVM: VMX: wbinvd exiting Avi Kivity
2007-12-26 11:05 ` [PATCH 42/55] KVM: x86 emulator: remove 8 bytes operands emulator for call near instruction Avi Kivity
2007-12-26 11:05 ` [PATCH 43/55] KVM: Simplify CPU_TASKS_FROZEN cpu notifier handling Avi Kivity
2007-12-26 11:05 ` [PATCH 44/55] KVM: add kvm_is_error_hva() Avi Kivity
2007-12-26 11:05 ` [PATCH 45/55] KVM: introduce gfn_to_hva() Avi Kivity
2007-12-26 11:05 ` [PATCH 46/55] KVM: Change kvm_{read,write}_guest() to use copy_{from,to}_user() Avi Kivity
2007-12-26 11:05 ` [PATCH 47/55] KVM: Portability: Move some includes to x86.c Avi Kivity
2007-12-26 11:05 ` [PATCH 48/55] KVM: Portability: Move kvm_x86_ops " Avi Kivity
2007-12-26 11:05 ` [PATCH 49/55] KVM: Portability: Add vcpu and hardware management arch hooks Avi Kivity
2007-12-26 11:05 ` [PATCH 50/55] KVM: Portability: Combine kvm_init and kvm_init_x86 Avi Kivity
2007-12-26 11:05 ` [PATCH 51/55] KVM: Portability: Move x86 specific code from kvm_init() to kvm_arch() Avi Kivity
2007-12-26 11:05 ` [PATCH 52/55] KVM: x86 emulator: modify 'lods', and 'stos' not to depend on CR2 Avi Kivity
2007-12-26 11:05 ` [PATCH 53/55] KVM: Portability: move KVM_CHECK_EXTENSION Avi Kivity
2007-12-26 11:05 ` [PATCH 54/55] KVM: VMX: Consolidate register usage in vmx_vcpu_run() Avi Kivity
2007-12-26 11:06 ` [PATCH 55/55] KVM: Portability: Make kvm_vcpu_ioctl_translate arch dependent Avi Kivity
2007-12-26 20:47 ` [PATCH 00/55] KVM patch queue review for 2.6.25 merge window (part II) Sam Ravnborg
2007-12-27 6:51 ` Avi Kivity
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