- 10 6月, 2009 20 次提交
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由 Sheng Yang 提交于
Memory aliases with different memory type is a problem for guest. For the guest without assigned device, the memory type of guest memory would always been the same as host(WB); but for the assigned device, some part of memory may be used as DMA and then set to uncacheable memory type(UC/WC), which would be a conflict of host memory type then be a potential issue. Snooping control can guarantee the cache correctness of memory go through the DMA engine of VT-d. [avi: fix build on ia64] Signed-off-by: NSheng Yang <sheng@linux.intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Jes Sorensen 提交于
Restore local irq enabled state before calling kvm_arch_vcpu_init(), which calls kmalloc(GFP_KERNEL). Signed-off-by: NJes Sorensen <jes@sgi.com> Acked-by: NXiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Jes Sorensen 提交于
Preserve interrupt status around call to kvm_insert_vmm_mappin() in kvm_vcpu_pre_transition(). Signed-off-by: NJes Sorensen <jes@sgi.com> Acked-by: NXiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Jes Sorensen 提交于
Make sure to restore the psr after calling kvm_insert_vmm_mapping() which calls ia64_itr_entry() as it disables local interrupts and kvm_vcpu_init() may sleep. Avoids a warning from the lock debugging code. Signed-off-by: NJes Sorensen <jes@sgi.com> Acked-by : Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Jes Sorensen 提交于
vti_vcpu_load() doesn't do anything, so lets get rid of it. Signed-off-by: NJes Sorensen <jes@sgi.com> Acked-by : Xiantao Zhang<xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Xiantao Zhang 提交于
Flush all vcpu's TLB entries once changes guest's memory mapping. Signed-off-by: NXiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Jes Sorensen 提交于
Reorder locking to avoid holding the slots_lock when entering the guest. Signed-off-by: NJes Sorensen <jes@sgi.com> Acked-by : Xiantao Zhang<xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Zhang, Xiantao 提交于
Since kvm-intel modue can't be built-in, make kvm depend on CONFIG_MODULES. Signed-off-by: NXiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Yang Zhang 提交于
Currently, the interrupt enable bit is cleared when in the vmm. This patch sets the bit and the external interrupts can be dealt with when in the vmm. This improves the I/O performance. Signed-off-by: NYang Zhang <yang.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Gleb Natapov 提交于
kvm_vcpu_block() unhalts vpu on an interrupt/timer without checking if interrupt window is actually opened. Signed-off-by: NGleb Natapov <gleb@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Gleb Natapov 提交于
Currently timer events are processed before entering guest mode. Move it to main vcpu event loop since timer events should be processed even while vcpu is halted. Timer may cause interrupt/nmi to be injected and only then vcpu will be unhalted. Signed-off-by: NGleb Natapov <gleb@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Jes Sorensen 提交于
Copy in SN2 RTC based ITC emulation for fast exit. The two versions have the same size, so a dropin is simpler than patching the branch instruction to hit the SN2 version. Signed-off-by: NJes Sorensen <jes@sgi.com> Acked-by: NXiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Jes Sorensen 提交于
On SN2 do not pass down the real ITC frequency, but rather patch the values to match the SN2 RTC frequency. Signed-off-by: NJes Sorensen <jes@sgi.com> Acked-by: NXiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Jes Sorensen 提交于
Move all reading of special register 'AR_ITC' into two functions, one in the kernel and one in the VMM module. When running on SN2, base the result on the RTC rather the system ITC, as the ITC isn't synchronized. Signed-off-by: NJes Sorensen <jes@sgi.com> Acked-by: NXiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Jes Sorensen 提交于
On SN2, map in the SN2 RTC registers to the VMM module, needed for ITC emulation. Signed-off-by: NJes Sorensen <jes@sgi.com> Acked-by: NXiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Gleb Natapov 提交于
Deliver interrupt during destination matching loop. Signed-off-by: NGleb Natapov <gleb@redhat.com> Acked-by: NXiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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由 Gleb Natapov 提交于
The new way does not require additional loop over vcpus to calculate the one with lowest priority as one is chosen during delivery bitmap construction. Signed-off-by: NGleb Natapov <gleb@redhat.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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由 Gleb Natapov 提交于
Use kvm_apic_match_dest() in kvm_get_intr_delivery_bitmask() instead of duplicating the same code. Use kvm_get_intr_delivery_bitmask() in apic_send_ipi() to figure out ipi destination instead of reimplementing the logic. Signed-off-by: NGleb Natapov <gleb@redhat.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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由 Gleb Natapov 提交于
Get rid of ioapic_inj_irq() and ioapic_inj_nmi() functions. Signed-off-by: NGleb Natapov <gleb@redhat.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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由 Yang Zhang 提交于
Modify the arg of kvm_get_lowest_prio_vcpu(). Make it consistent with its declaration. Signed-off-by: NYang Zhang <yang.zhang@intel.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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- 06 5月, 2009 1 次提交
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由 Jan Beulich 提交于
- drivers/xen/events.c did not compile - xen_setup_hook caused a modpost section warning - the use of u64 (instead of unsigned long long) together with a %llu in drivers/xen/balloon.c caused a compiler warning Signed-off-by: NJan Beulich <jbeulich@novell.com> Signed-off-by: NTony Luck <tony.luck@intel.com>
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- 22 4月, 2009 3 次提交
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由 Jes Sorensen 提交于
Reorder locking as down_read() may return with local interrupts enabled, which means we could go into vti_vcpu_run() with interrupts enabled. This caused random crashes on the Altix as the timer interrupt tried to read a memory mapped clock source, for which the TLB had not yet been reinstated in the exit, before ipsr was retored. Signed-off-by: NJes Sorensen <jes@sgi.com> Acked-by: NXiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 David Howells 提交于
In non-SMP mode, the variable section attribute specified by DECLARE_PER_CPU() does not agree with that specified by DEFINE_PER_CPU(). This means that architectures that have a small data section references relative to a base register may throw up linkage errors due to too great a displacement between where the base register points and the per-CPU variable. On FRV, the .h declaration says that the variable is in the .sdata section, but the .c definition says it's actually in the .data section. The linker throws up the following errors: kernel/built-in.o: In function `release_task': kernel/exit.c:78: relocation truncated to fit: R_FRV_GPREL12 against symbol `per_cpu__process_counts' defined in .data section in kernel/built-in.o kernel/exit.c:78: relocation truncated to fit: R_FRV_GPREL12 against symbol `per_cpu__process_counts' defined in .data section in kernel/built-in.o To fix this, DECLARE_PER_CPU() should simply apply the same section attribute as does DEFINE_PER_CPU(). However, this is made slightly more complex by virtue of the fact that there are several variants on DEFINE, so these need to be matched by variants on DECLARE. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Magnus Damm 提交于
Pass clocksource pointer to the read() callback for clocksources. This allows us to share the callback between multiple instances. [hugh@veritas.com: fix powerpc build of clocksource pass clocksource mods] [akpm@linux-foundation.org: cleanup] Signed-off-by: NMagnus Damm <damm@igel.co.jp> Acked-by: NJohn Stultz <johnstul@us.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: NHugh Dickins <hugh@veritas.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 21 4月, 2009 1 次提交
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由 Isaku Yamahata 提交于
This patch fixes the following compilation error caused by recursive inclusion of kernel.h which defines BUILD_BUG_ON(). In this case, the case it catches will be caught by the case CONFIG_PARAVIRT=n, so removing it would not hurt compile time check very much. So fix the breakage by removing it. CC arch/ia64/kernel/asm-offsets.s In file included from include/linux/bitops.h:17, from include/linux/kernel.h:15, from include/linux/sched.h:52, from arch/ia64/kernel/asm-offsets.c:9: arch/ia64/include/asm/bitops.h: In function 'set_bit': arch/ia64/include/asm/bitops.h:47: error: implicit declaration of function 'BUILD_BUG_ON' Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: NTony Luck <tony.luck@intel.com>
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- 17 4月, 2009 2 次提交
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由 Dimitri Sivanich 提交于
Having flush_tlb_mm->smp_flush_tlb_mm() send an IPI to every cpu on the system is occasionally triggering spin_lock contention in generic_smp_call_function_interrupt(). Follow x86 arch's lead and only sends IPIs to the cpus in mm->cpu_vm_mask. Experiments with this change have shown significant improvement in this contention issue. Signed-off-by: NDimitri Sivanich <sivanich@sgi.com> Signed-off-by: NTony Luck <tony.luck@intel.com>
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由 Marcelo Tosatti 提交于
KVM will use smp_send_reschedule to force a cpu out of guest mode. Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NTony Luck <tony.luck@intel.com>
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- 14 4月, 2009 1 次提交
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由 Yang Hongyang 提交于
This is the second go through of the old DMA_nBIT_MASK macro,and there're not so many of them left,so I put them into one patch.I hope this is the last round. After this the definition of the old DMA_nBIT_MASK macro could be removed. Signed-off-by: NYang Hongyang <yanghy@cn.fujitsu.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Tony Lindgren <tony@atomide.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Greg KH <greg@kroah.com> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 09 4月, 2009 1 次提交
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由 Tony Luck 提交于
Gerd Hoffmann added these to Linux. Let ia64 use them. Signed-off-by: NTony Luck <tony.luck@intel.com>
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- 07 4月, 2009 4 次提交
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由 Yang Hongyang 提交于
Replace all DMA_24BIT_MASK macro with DMA_BIT_MASK(24) Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Yang Hongyang 提交于
Replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Yang Hongyang 提交于
Replace all DMA_40BIT_MASK macro with DMA_BIT_MASK(40) Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Yang Hongyang 提交于
Replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64) Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 03 4月, 2009 6 次提交
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由 Robin Holt 提交于
Implement __raw_read_lock_flags and __raw_write_lock_flags for the ia64 architecture. [kosaki.motohiro@jp.fujitsu.com: typo fix] Signed-off-by: NPetr Tesarik <ptesarik@suse.cz> Signed-off-by: NRobin Holt <holt@sgi.com> Cc: <linux-arch@vger.kernel.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: NTony Luck <tony.luck@intel.com> Signed-off-by: NKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Robin Holt 提交于
Pass the original flags to rwlock arch-code, so that it can re-enable interrupts if implemented for that architecture. Initially, make __raw_read_lock_flags and __raw_write_lock_flags stubs which just do the same thing as non-flags variants. Signed-off-by: NPetr Tesarik <ptesarik@suse.cz> Signed-off-by: NRobin Holt <holt@sgi.com> Acked-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: <linux-arch@vger.kernel.org> Acked-by: NIngo Molnar <mingo@elte.hu> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Robin Holt 提交于
Some current configs turn on GRU for ia64. The GRU code does not correctly load on boot on ia64 (GRU does continue to work for x86-64), so changing the IA64 Kconfig to not select GRU on ia64 configs for now until we have time to fix. Signed-off-by: NRobin Holt <holt@sgi.com> Acked-by: NJack Steiner <steiner@sgi.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jack Steiner 提交于
Add macros for using the UV hub to send interrupts. Change the IPI code to use these macros. These macros will also be used in additional patches that will follow. Signed-off-by: NJack Steiner <steiner@sgi.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jack Steiner 提交于
Add definitions for IA64 GRU MMRs. Signed-off-by: NJack Steiner <steiner@sgi.com> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Alexey Dobriyan 提交于
First argument unused since 2.3.11. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 02 4月, 2009 1 次提交
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由 Stoyan Gaydarov 提交于
Replace: if (test) BUG(); with BUG_ON(test); Signed-off-by: NStoyan Gaydarov <stoyboyker@gmail.com> Signed-off-by: NTony Luck <tony.luck@intel.com>
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