linux/virt, branch v2.6.36-rc2

KVM: Convert mask notifiers to use irqchip/pin instead of gsi

2010-08-02T03:40:39Z

Devices register mask notifier using gsi, but irqchip knows about irqchip/pin, so conversion from irqchip/pin to gsi should be done before looking for mask notifier to call. Signed-off-by: Gleb Natapov Signed-off-by: Marcelo Tosatti

KVM: Return EFAULT from kvm ioctl when guest accesses bad area

2010-08-02T03:40:33Z

Currently if guest access address that belongs to memory slot but is not backed up by page or page is read only KVM treats it like MMIO access. Remove that capability. It was never part of the interface and should not be relied upon. Signed-off-by: Gleb Natapov Signed-off-by: Avi Kivity

KVM: define hwpoison variables static

2010-08-02T03:40:32Z

They are not used outside of the file. Signed-off-by: Gleb Natapov Signed-off-by: Avi Kivity

KVM: Use u64 for frame data types

2010-08-02T03:39:44Z

For 32bit machines where the physical address width is larger than the virtual address width the frame number types in KVM may overflow. Fix this by changing them to u64. [sfr: fix build on 32-bit ppc] Signed-off-by: Joerg Roedel Signed-off-by: Stephen Rothwell Signed-off-by: Marcelo Tosatti

KVM: Remove unnecessary divide operations

2010-08-01T07:47:30Z

This patch converts unnecessary divide and modulo operations in the KVM large page related code into logical operations. This allows to convert gfn_t to u64 while not breaking 32 bit builds. Signed-off-by: Joerg Roedel Signed-off-by: Marcelo Tosatti

KVM: Fix IOMMU memslot reference warning

2010-08-01T07:47:29Z

This patch fixes the following warning. =================================================== [ INFO: suspicious rcu_dereference_check() usage. ] --------------------------------------------------- include/linux/kvm_host.h:259 invoked rcu_dereference_check() without protection! other info that might help us debug this: rcu_scheduler_active = 1, debug_locks = 0 no locks held by qemu-system-x86/29679. stack backtrace: Pid: 29679, comm: qemu-system-x86 Not tainted 2.6.35-rc3+ #200 Call Trace: [] lockdep_rcu_dereference+0xa8/0xb1 [] kvm_iommu_unmap_memslots+0xc9/0xde [kvm] [] kvm_iommu_unmap_guest+0x40/0x4e [kvm] [] kvm_arch_destroy_vm+0x1a/0x186 [kvm] [] kvm_put_kvm+0x110/0x167 [kvm] [] kvm_vcpu_release+0x18/0x1c [kvm] [] fput+0x22a/0x3a0 [] filp_close+0xb4/0xcd [] put_files_struct+0x1b7/0x36b [] ? put_files_struct+0x48/0x36b [] ? do_raw_spin_unlock+0x118/0x160 [] exit_files+0x6d/0x75 [] do_exit+0x47d/0xc60 [] ? _raw_spin_unlock_irq+0x30/0x36 [] do_group_exit+0xcf/0x134 [] get_signal_to_deliver+0x732/0x81d [] ? cpu_clock+0x4e/0x60 [] do_notify_resume+0x117/0xc43 [] ? trace_hardirqs_on+0xd/0xf [] ? sys_rt_sigtimedwait+0x2b5/0x3bf [] ? trace_hardirqs_off_thunk+0x3a/0x3c [] ? sysret_signal+0x5/0x3d [] int_signal+0x12/0x17 Signed-off-by: Sheng Yang Signed-off-by: Marcelo Tosatti

KVM: Fix a race condition for usage of is_hwpoison_address()

2010-08-01T07:47:11Z

is_hwpoison_address accesses the page table, so the caller must hold current->mm->mmap_sem in read mode. So fix its usage in hva_to_pfn of kvm accordingly. Comment is_hwpoison_address to remind other users. Reported-by: Avi Kivity Signed-off-by: Huang Ying Signed-off-by: Avi Kivity

KVM: Keep slot ID in memory slot structure

2010-08-01T07:47:07Z

May be used for distinguishing between internal and user slots, or for sorting slots in size order. Signed-off-by: Avi Kivity

KVM: Add mini-API for vcpu->requests

2010-08-01T07:47:05Z

Makes it a little more readable and hackable. Signed-off-by: Avi Kivity

KVM: Remove memory alias support

2010-08-01T07:47:00Z

As advertised in feature-removal-schedule.txt. Equivalent support is provided by overlapping memory regions. Signed-off-by: Avi Kivity