- Oct 05, 2012
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Alexander Graf authored
Generic KVM code might want to know whether we are inside guest context or outside. It also wants to be able to push us out of guest context. Add support to the BookE code for the generic vcpu->mode field that describes the above states. Signed-off-by:Alexander Graf <agraf@suse.de>
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Alexander Graf authored
We need a central place to check for pending requests in. Add one that only does the timer check we already do in a different place. Later, this central function can be extended by more checks. Signed-off-by: -
Scott Wood authored
This fixes breakage introduced by the following commit: commit 6d2d82627f4f1e96a33664ace494fa363e0495cb Author: Liu Yu-B13201 <Yu.Liu@freescale.com> Date: Tue Jul 3 05:48:56 2012 +0000 PPC: Don't use hardcoded opcode for ePAPR hcall invocation when a driver that uses ePAPR hypercalls is built as a module. Reported-by:Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by:
Scott Wood <scottwood@freescale.com> Signed-off-by:
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Paul Mackerras authored
This is printed once for every RMA or HPT region that get preallocated. If one preallocates hundreds of such regions (in order to run hundreds of KVM guests), that gets rather painful, so make it a bit quieter. Signed-off-by:
Paul Mackerras <paulus@samba.org> Signed-off-by:
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Alexander Graf authored
Our mapping code assumes that TLB0 entries are always mapped. However, after calling clear_tlb_refs() this is no longer the case. Map them dynamically if we find an entry unmapped in TLB0. Signed-off-by: -
Alexander Graf authored
We're already counting remote TLB flushes in a variable, but don't export it to user space yet. Do so, so we know what's going on. Signed-off-by: -
Alexander Graf authored
Semantically, the "SYNC" cap means that we have mmu notifiers available. Express this in our #ifdef'ery around the feature, so that we can be sure we don't miss out on ppc targets when they get their implementation. Signed-off-by: -
Alexander Graf authored
We want to have tracing information on guest exits for booke as well as book3s. Since most information is identical, use a common trace point. Signed-off-by: -
Liu Yu-B13201 authored
Signed-off-by:
Liu Yu <yu.liu@freescale.com> Signed-off-by:
Stuart Yoder <stuart.yoder@freescale.com> Signed-off-by:
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Scott Wood authored
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Stuart Yoder authored
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Liu Yu-B13201 authored
Signed-off-by:
Varun Sethi <Varun.Sethi@freescale.com> Signed-off-by:
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Liu Yu-B13201 authored
And add a new flag definition in kvm_ppc_pvinfo to indicate whether the host supports the EV_IDLE hcall. Signed-off-by:
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Stuart Yoder authored
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Stuart Yoder authored
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Stuart Yoder authored
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- Sep 06, 2012
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Marcelo Tosatti authored
Introducing kvm_arch_flush_shadow_memslot, to invalidate the translations of a single memory slot. Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by:
Avi Kivity <avi@redhat.com>
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- Aug 27, 2012
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Gavin Shan authored
The build error was caused by that builtin functions are calling the functions implemented in modules. This error was introduced by commit 4d8b81ab ("KVM: introduce readonly memslot"). The patch fixes the build error by moving function __gfn_to_hva_memslot() from kvm_main.c to kvm_host.h and making that "inline" so that the builtin function (kvmppc_h_enter) can use that. Acked-by:
Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by:
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- Aug 24, 2012
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Benjamin Herrenschmidt authored
This reverts commit b1acf1bb. Something went horribly wrong when I did savedefconfig, not sure what, but what's in there is busted so let's revert it. Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Sukadev Bhattiprolu authored
For certain speculative events on Power7, 'perf stat' reports far higher event count than 'perf record' for the same event. As described in following commit, a performance monitor exception is raised even when the the performance events are rolled back. commit 0837e324 Author: Anton Blanchard <anton@samba.org> Date: Wed Mar 9 14:38:42 2011 +1100 perf_event_interrupt() records an event only when an overflow occurs. But this check for overflow is a simple 'if (val < 0)'. Because the events are rolled back, this check for overflow fails and the event is not recorded. perf_event_interrupt() later uses pmc_overflow() to detect the overflow and resets the counters and the events are lost completely. To properly detect the overflow of rolled back events, use pmc_overflow() even when recording events. To reproduce: $ cat strcpy.c #include <stdio.h> #include <string.h> main() { char buf[256]; alarm(5); while(1) strcpy(buf, "string1"); } $ perf record -e r20014 ./strcpy $ perf report -n > report.1 $ perf stat -e r20014 > report.2 # Compare report.1 and report.2 Reported-by:Maynard Johnson <mpjohn@us.ibm.com> Signed-off-by:
Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by:
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Anton Blanchard authored
The enhanced prefetch hint patches corrupt the condition register that was used to check if we are in interrupt. Fix this by using cr1. Signed-off-by:
Anton Blanchard <anton@samba.org> Signed-off-by:
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Anton Blanchard authored
"powerpc: Use enhanced touch instructions in POWER7 copy_to_user/copy_from_user" was applied twice. Remove one. Signed-off-by:
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Jiri Kosina authored
Directly comparing current->personality against PER_LINUX32 doesn't work in cases when any of the personality flags stored in the top three bytes are used. Directly forcefully setting personality to PER_LINUX32 or PER_LINUX discards any flags stored in the top three bytes Use personality() macro to compare only PER_MASK bytes and make sure that we are setting only the bits that should be set, instead of overwriting the whole value. Signed-off-by:
Jiri Kosina <jkosina@suse.cz> Signed-off-by:
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Aaro Koskinen authored
Checking for device mask to cover the whole IOMMU table is too strict. IOMMU allocators should handle mask constraint properly for each allocation. The patch enables to use old AirPort Extreme cards on PowerMacs with more than 1GB of memory; without the patch the driver init fails with: b43-pci-bridge 0001:01:01.0: Warning: IOMMU window too big for device mask b43-pci-bridge 0001:01:01.0: mask: 0x3fffffff, table end: 0x80000000 b43-phy0 ERROR: The machine/kernel does not support the required 30-bit DMA mask Signed-off-by:
Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by:
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Michael Neuling authored
Signed-off-by:
Michael Neuling <mikey@neuling.org> Signed-off-by:
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Tiejun Chen authored
For powerpc BooKE and e200, singlestep is handled on the critical/dbg exception stack. This causes current_thread_info() to fail for kgdb internal, so previously We work around this issue by copying the thread_info from the kernel stack before calling kgdb_handle_exception, and copying it back afterwards. But actually we don't do this properly. We should backup current_thread_info then restore that when exit. Signed-off-by:
Tiejun Chen <tiejun.chen@windriver.com> Signed-off-by:
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Tiejun Chen authored
We need to skip a breakpoint exception when it occurs after a breakpoint has already been removed. Signed-off-by:
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Tiejun Chen authored
The kgdb_single_step flag has the possibility to indefinitely hang the system on an SMP system. The x86 arch have the same problem, and that problem was fixed by commit 8097551d(kgdb,x86: do not set kgdb_single_step on x86). This patch does the same behaviors as x86's patch. Signed-off-by:
Dongdong Deng <dongdong.deng@windriver.com> Signed-off-by:
Jason Wessel <jason.wessel@windriver.com> Signed-off-by:
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Scott Wood authored
Add several #includes that mpic_msgr relies on being pulled implicitly, which only happens on certain configs. Signed-off-by:
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Michael Neuling authored
Currently if you are doing a global perf recording with hardware breakpoints (ie perf record -e mem:0xdeadbeef -a), you can oops with: Faulting instruction address: 0xc000000000738890 cpu 0xc: Vector: 300 (Data Access) at [c0000003f76af8d0] pc: c000000000738890: .hw_breakpoint_handler+0xa0/0x1e0 lr: c000000000738830: .hw_breakpoint_handler+0x40/0x1e0 sp: c0000003f76afb50 msr: 8000000000001032 dar: 6f0 dsisr: 42000000 current = 0xc0000003f765ac00 paca = 0xc00000000f262a00 softe: 0 irq_happened: 0x01 pid = 6810, comm = loop-read enter ? for help [c0000003f76afbe0] c00000000073cd04 .notifier_call_chain.isra.0+0x84/0xe0 [c0000003f76afc80] c00000000073cdbc .notify_die+0x3c/0x60 [c0000003f76afd20] c0000000000139f0 .do_dabr+0x40/0xf0 [c0000003f76afe30] c000000000005a9c handle_dabr_fault+0x14/0x48 --- Exception: 300 (Data Access) at 0000000010000480 SP (ff8679e0) is in userspace This is because we don't check to see if the break point is associated with task before we deference the task_struct pointer. This changes the update to use current. Signed-off-by: -
Michael Ellerman authored
There are a few whitespace goolies in xmon.c, some of them appear to be my fault. Fix them all in one go. Signed-off-by:
Michael Ellerman <michael@ellerman.id.au> Signed-off-by:
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Michael Ellerman authored
Since the printk internals were reworked the xmon 'dl' command which dumps the content of __log_buf has stopped working. It is now a structured buffer, so just dumping it doesn't really work. Use the helpers added for kgdb to print out the content. Signed-off-by:
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- Aug 23, 2012
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Kim Phillips authored
Yocto (Built by Poky 7.0) 1.2 root filesystems fail to boot, at least over nfs, with: Failed to mount /dev: No such device Configuring DEVTMPFS fixes it. Signed-off-by:
Kim Phillips <kim.phillips@freescale.com> Signed-off-by:
Kumar Gala <galak@kernel.crashing.org>
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Kim Phillips authored
run make savedefconfig on fsl defconfigs. Signed-off-by:
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- Aug 16, 2012
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Alan Cox authored
Put the parameters the right way around Addresses https://bugzilla.kernel.org/show_bug.cgi?id=44031 Reported-by:
David Binderman <dcb314@hotmail.com> Signed-off-by:
Alan Cox <alan@linux.intel.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Alexander Graf authored
When we map a page that wasn't icache cleared before, do so when first mapping it in KVM using the same information bits as the Linux mapping logic. That way we are 100% sure that any page we map does not have stale entries in the icache. Signed-off-by: -
Paul Mackerras authored
In handling the H_CEDE hypercall, if this vcpu has already been prodded (with the H_PROD hypercall, which Linux guests don't in fact use), we branch to a numeric label '1f'. Unfortunately there is another '1:' label before the one that we want to jump to. This fixes the problem by using a textual label, 'kvm_cede_prodded'. It also changes the label for another longish branch from '2:' to 'kvm_cede_exit' to avoid a possible future problem if code modifications add another numeric '2:' label in between. Signed-off-by:
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- Aug 10, 2012
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Shengzhou Liu authored
Add the missing usb controller version info and port0, which is required during setup usb phy. Signed-off-by:
Shengzhou Liu <Shengzhou.Liu@freescale.com> Signed-off-by:
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Zhao Chenhui authored
Signed-off-by:
Zhao Chenhui <chenhui.zhao@freescale.com> Signed-off-by:
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- Aug 06, 2012
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Xiao Guangrong authored
After commit a2766325, the error page is replaced by the error code, it need not be released anymore [ The patch has been compiling tested for powerpc ] Signed-off-by:
Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> Signed-off-by:
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