| Commit message (Collapse) | Author | Age |
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Use vmx_set_nmi_mask() instead of open-coding management of
the hardware bit and the software hint (nmi_known_unmasked).
There's a slight change of behaviour when running without
hardware virtual NMI support - we now clear the NMI mask if
NMI delivery faulted in that case as well. This improves
emulation accuracy.
Signed-off-by: Avi Kivity <avi@redhat.com>
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We use boot_cpu_has now.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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vmx_complete_atomic_exit() cached it for us, so we can use it here.
Signed-off-by: Avi Kivity <avi@redhat.com>
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Only read it if we're going to use it later.
Signed-off-by: Avi Kivity <avi@redhat.com>
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Move the exit reason checks to the front of the function, for early
exit in the common case.
Signed-off-by: Avi Kivity <avi@redhat.com>
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Check for the exit reason first; this allows us, later,
to avoid a VMREAD for VM_EXIT_INTR_INFO_FIELD.
Signed-off-by: Avi Kivity <avi@redhat.com>
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When we haven't injected an interrupt, we don't need to recover
the nmi blocking state (since the guest can't set it by itself).
This allows us to avoid a VMREAD later on.
Signed-off-by: Avi Kivity <avi@redhat.com>
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We may read the cpl quite often in the same vmexit (instruction privilege
check, memory access checks for instruction and operands), so we gain
a bit if we cache the value.
Signed-off-by: Avi Kivity <avi@redhat.com>
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In long mode, vm86 mode is disallowed, so we need not check for
it. Reading rflags.vm may require a VMREAD, so it is expensive.
Signed-off-by: Avi Kivity <avi@redhat.com>
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If called several times within the same exit, return cached results.
Signed-off-by: Avi Kivity <avi@redhat.com>
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Some rflags bits are owned by the host, not guest, so we need to use
kvm_get_rflags() to strip those bits away or kvm_set_rflags() to add them
back.
Signed-off-by: Avi Kivity <avi@redhat.com>
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This fixes:
alchemy/xxs1500/init.c: In function 'prom_init':
alchemy/xxs1500/init.c:57:17: error: ignoring return value of 'kstrtoul', declared with attribute warn_unused_result
Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/2340/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Without this, stale Icache or TLB entries may be used.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
https://patchwork.linux-mips.org/patch/2318/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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PAGE_SIZE >= 64kb (1 << 16) is too big to be the immediate of the
addiu/daddiu instruction, so, use addu/daddu instruction instead.
The following compiling error is fixed:
AS arch/mips/power/hibernate.o
arch/mips/power/hibernate.S: Assembler messages:
arch/mips/power/hibernate.S:38: Error: expression out of range
make[2]: *** [arch/mips/power/hibernate.o] Error 1
make[1]: *** [arch/mips/power] Error 2
Reported-by: Roman Mamedov <rm@romanrm.ru>
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2313/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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The code for supporting one-shot mode for the clockevent is already there,
only the feature flag was not set. Setting the one-shot flag allows the
kernel to run in tickless mode.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2261/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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MODPOST 356 modules
ERROR: "jz4740_timer_disable_watchdog" [drivers/watchdog/jz4740_wdt.ko] undefine
d!
ERROR: "jz4740_timer_enable_watchdog" [drivers/watchdog/jz4740_wdt.ko] undefined
!
make[1]: *** [__modpost] Error 1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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CC arch/mips/jz4740/dma.o
arch/mips/jz4740/dma.c: In function 'jz4740_dma_chan_irq':
arch/mips/jz4740/dma.c:245:11: error: variable 'status' set but not used [-Werro
r=unused-but-set-variable]
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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HOSTCC arch/mips/boot/compressed/calc_vmlinuz_load_addr
arch/mips/boot/compressed/calc_vmlinuz_load_addr.c: In function 'main':
arch/mips/boot/compressed/calc_vmlinuz_load_addr.c:35:2: warning: format '%llx' expects type 'long long unsigned int *', but argument 3 has type 'uint64_t *'
arch/mips/boot/compressed/calc_vmlinuz_load_addr.c:54:2: warning: format '%llx' expects type 'long long unsigned int', but argument 2 has type 'uint64_t'
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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CC arch/mips/alchemy/devboards/db1x00/board_setup.o
arch/mips/alchemy/devboards/db1x00/board_setup.c: In function 'board_setup':
arch/mips/alchemy/devboards/db1x00/board_setup.c:130:6: error: variable 'pin_func' set but not used [-Werror=unused-but-set-variable]
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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CC arch/mips/sgi-ip27/ip27-hubio.o
arch/mips/sgi-ip27/ip27-hubio.c: In function 'hub_pio_map':
arch/mips/sgi-ip27/ip27-hubio.c:32:20: error: variable 'junk' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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CC arch/mips/sgi-ip27/ip27-hubio.o
arch/mips/sgi-ip27/ip27-hubio.c: In function 'hub_pio_map':
arch/mips/sgi-ip27/ip27-hubio.c:32:20: error: variable 'junk' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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The CRC32 actually includes the tag_version.
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2275/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Instead of making each Octeon specific option depend on
CPU_CAVIUM_OCTEON, gate the body of the entire file with
CPU_CAVIUM_OCTEON. With this change, CAVIUM_OCTEON_SPECIFIC_OPTIONS
becomes useless, so get rid of it as well.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2091/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Octeon doesn't use IRQ_CPU, so don't select it.
IRQ_CPU_OCTEON is a completely unused symbol, remove it completely.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2086/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Reported and original patch by Yoichi Yuasa <yuasa@linux-mips.org>.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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CC arch/mips/pmc-sierra/msp71xx/msp_irq_per.o
arch/mips/pmc-sierra/msp71xx/msp_irq_per.c:101:2: error: expected identifier before '.' token
make[2]: *** [arch/mips/pmc-sierra/msp71xx/msp_irq_per.o] Error 1
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/2246/
Cc: linux-mips <linux-mips@linux-mips.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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CC arch/mips/loongson/common/env.o
arch/mips/loongson/common/env.c: In function 'prom_init_env':
arch/mips/loongson/common/env.c:50:12: error: variable 'ret' set but not used [-Werror=unused-but-set-variable]
arch/mips/loongson/common/env.c:51:12: error: variable 'ret' set but not used [-Werror=unused-but-set-variable]
arch/mips/loongson/common/env.c:52:12: error: variable 'ret' set but not used [-Werror=unused-but-set-variable]
arch/mips/loongson/common/env.c:53:12: error: variable 'ret' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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CC arch/mips/jazz/jazzdma.o
arch/mips/jazz/jazzdma.c: In function 'vdma_remap':
arch/mips/jazz/jazzdma.c:214:20: error: variable 'npages' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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CC arch/mips/sni/time.o
arch/mips/sni/time.c: In function 'dosample':
arch/mips/sni/time.c:98:19: error: variable 'lsb' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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CC arch/mips/mti-malta/malta-int.o
arch/mips/mti-malta/malta-int.c: In function 'mips_pcibios_iack':
arch/mips/mti-malta/malta-int.c:59:6: error: variable 'dummy' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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CC arch/mips/mti-malta/malta-init.o
arch/mips/mti-malta/malta-init.c: In function 'prom_init':
arch/mips/mti-malta/malta-init.c:196:6: error: variable 'result' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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CC arch/mips/sgi-ip22/ip22-platform.o
arch/mips/sgi-ip22/ip22-platform.c: In function 'sgiseeq_devinit':
arch/mips/sgi-ip22/ip22-platform.c:135:15: error: variable 'tmp' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
While at it rename the variable to pbdma for readability; there is a
local variable tmp of different type being used in two nested blocks.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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CC arch/mips/sgi-ip22/ip22-time.o
arch/mips/sgi-ip22/ip22-time.c: In function 'dosample':
arch/mips/sgi-ip22/ip22-time.c:35:10: error: variable 'lsb' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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CC arch/mips/mm/tlbex.o
arch/mips/mm/tlbex.c: In function 'build_r4000_tlb_refill_handler':
arch/mips/mm/tlbex.c:1155:22: error: variable 'vmalloc_mode' set but not used [-Werror=unused-but-set-variable]
arch/mips/mm/tlbex.c:1154:28: error: variable 'htlb_info' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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CC arch/mips/mm/c-r4k.o
arch/mips/mm/c-r4k.c: In function 'probe_scache':
arch/mips/mm/c-r4k.c:1078:6: error: variable 'tmp' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors
Older GCC versions didn't warn about the unused variable tmp because it was
getting initialized.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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The current code is abusing the uasm interface by passing jump target
addresses with high bits set. Mask the addresses to avoid annoying
messages at boot time.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Wu Zhangjin <wuzhangjin@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/1922/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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definitions
The Intel Nehalem offcore bits implemented in:
e994d7d23a0b: perf: Fix LLC-* events on Intel Nehalem/Westmere
... are wrong: they implemented _ACCESS as _HIT and counted OTHER_CORE_HIT* as
MISS even though its clearly documented as an L3 hit ...
Fix them and the Westmere definitions as well.
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Lin Ming <ming.m.lin@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1299119690-13991-3-git-send-email-ming.m.lin@intel.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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ptrace_set_debugreg()
We make use of ptrace_get_breakpoints() / ptrace_put_breakpoints() to
protect ptrace_set_debugreg() even if CONFIG_HAVE_HW_BREAKPOINT if off.
However in this case, these APIs are not implemented.
To fix this, push the protection down inside the relevant ifdef.
Best would be to export the code inside
CONFIG_HAVE_HW_BREAKPOINT into a standalone function to cleanup
the ifdefury there and call the breakpoint ref API inside. But
as it is more invasive, this should be rather made in an -rc1.
Fixes this build error:
arch/powerpc/kernel/ptrace.c:1594: error: implicit declaration of function 'ptrace_get_breakpoints' make[2]: ***
Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: LPPC <linuxppc-dev@lists.ozlabs.org>
Cc: Prasad <prasad@linux.vnet.ibm.com>
Cc: v2.6.33.. <stable@kernel.org>
Link: http://lkml.kernel.org/r/1304639598-4707-1-git-send-email-fweisbec@gmail.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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ssh://master.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into perf/urgent
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* 'for-linus' of git://github.com/at91linux/linux-2.6-at91:
at91: Add ARCH_ID and basic cpu macros definition for 5series chips family.
arm: at91: fix compiler warning for eb01 board build
arm: at91: minimal defconfig for at91x40 SoC
ARM: at91: AT91CAP9 has a macb device
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Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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Fix compiler warning when building for AT91EB01 board:
arch/arm/mach-at91/board-eb01.c:41: warning: initialisation from incompatible pointer type
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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A minimal defconfig for build testing the AT91x40 SoC.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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commit
ee621dd (net: atmel_macb Kconfig: remove long dependency line)
replaced a list of several explicit machines in the dependencies of MACB by
a single symbol that is selected by the respective machines. ee621dd missed
to let ARCH_AT91CAP9 select HAVE_NET_MACB though which is fixed here.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
* 'stable/bug-fixes-for-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen: mask_rw_pte mark RO all pagetable pages up to pgt_buf_top
xen/mmu: Add workaround "x86-64, mm: Put early page table high"
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mask_rw_pte is currently checking if a pfn is a pagetable page if it
falls in the range pgt_buf_start - pgt_buf_end but that is incorrect
because pgt_buf_end is a moving target: pgt_buf_top is the real
boundary.
Acked-by: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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As a consequence of the commit:
commit 4b239f458c229de044d6905c2b0f9fe16ed9e01e
Author: Yinghai Lu <yinghai@kernel.org>
Date: Fri Dec 17 16:58:28 2010 -0800
x86-64, mm: Put early page table high
it causes the Linux kernel to crash under Xen:
mapping kernel into physical memory
Xen: setup ISA identity maps
about to get started...
(XEN) mm.c:2466:d0 Bad type (saw 7400000000000001 != exp 1000000000000000) for mfn b1d89 (pfn bacf7)
(XEN) mm.c:3027:d0 Error while pinning mfn b1d89
(XEN) traps.c:481:d0 Unhandled invalid opcode fault/trap [#6] on VCPU 0 [ec=0000]
(XEN) domain_crash_sync called from entry.S
(XEN) Domain 0 (vcpu#0) crashed on cpu#0:
...
The reason is that at some point init_memory_mapping is going to reach
the pagetable pages area and map those pages too (mapping them as normal
memory that falls in the range of addresses passed to init_memory_mapping
as argument). Some of those pages are already pagetable pages (they are
in the range pgt_buf_start-pgt_buf_end) therefore they are going to be
mapped RO and everything is fine.
Some of these pages are not pagetable pages yet (they fall in the range
pgt_buf_end-pgt_buf_top; for example the page at pgt_buf_end) so they
are going to be mapped RW. When these pages become pagetable pages and
are hooked into the pagetable, xen will find that the guest has already
a RW mapping of them somewhere and fail the operation.
The reason Xen requires pagetables to be RO is that the hypervisor needs
to verify that the pagetables are valid before using them. The validation
operations are called "pinning" (more details in arch/x86/xen/mmu.c).
In order to fix the issue we mark all the pages in the entire range
pgt_buf_start-pgt_buf_top as RO, however when the pagetable allocation
is completed only the range pgt_buf_start-pgt_buf_end is reserved by
init_memory_mapping. Hence the kernel is going to crash as soon as one
of the pages in the range pgt_buf_end-pgt_buf_top is reused (b/c those
ranges are RO).
For this reason, this function is introduced which is called _after_
the init_memory_mapping has completed (in a perfect world we would
call this function from init_memory_mapping, but lets ignore that).
Because we are called _after_ init_memory_mapping the pgt_buf_[start,
end,top] have all changed to new values (b/c another init_memory_mapping
is called). Hence, the first time we enter this function, we save
away the pgt_buf_start value and update the pgt_buf_[end,top].
When we detect that the "old" pgt_buf_start through pgt_buf_end
PFNs have been reserved (so memblock_x86_reserve_range has been called),
we immediately set out to RW the "old" pgt_buf_end through pgt_buf_top.
And then we update those "old" pgt_buf_[end|top] with the new ones
so that we can redo this on the next pagetable.
Acked-by: "H. Peter Anvin" <hpa@zytor.com>
Reviewed-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
[v1: Updated with Jeremy's comments]
[v2: Added the crash output]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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