| Commit message (Collapse) | Author | Age |
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... in favor of the more general emulator_{read,write}_*.
Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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... instead of a x86_emulate_ctxt, so that other callers can use it easily.
Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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Changes some svm.c internal function names:
1) io_adress -> io_address (de-germanify the spelling)
2) kvm_reput_irq -> reput_irq (it's not a generic kvm function)
3) kvm_do_inject_irq -> (it's not a generic kvm function)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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container_of is wonderful, but not casting at all is better. This
patch changes svm.c's internal functions to pass "struct vcpu_svm"
instead of "struct kvm_vcpu" and using container_of.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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There are several places where hardcoded numbers are used in place of
the easily-available constant, which is poor form.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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container_of is wonderful, but not casting at all is better. This
patch changes vmx.c's internal functions to pass "struct vcpu_vmx"
instead of "struct kvm_vcpu" and using container_of.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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Now that kvm generally runs with preemption enabled, we need to protect
the fpu intialization sequence.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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This allows the kvm mmu to perform sleepy operations, such as memory
allocation.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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Current kvm disables preemption while the new virtualization registers are
in use. This of course is not very good for latency sensitive workloads (one
use of virtualization is to offload user interface and other latency
insensitive stuff to a container, so that it is easier to analyze the
remaining workload). This patch re-enables preemption for kvm; preemption
is now only disabled when switching the registers in and out, and during
the switch to guest mode and back.
Contains fixes from Shaohua Li <shaohua.li@intel.com>.
Signed-off-by: Avi Kivity <avi@qumranet.com>
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Add the hypercall number to kvm_run and initialize it. This changes the ABI,
but as this particular ABI was unusable before this no users are affected.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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Put cpu feature detecting part in hardware_setup, and stored the vmcs
condition in global variable for further check.
[glommer: fix for some i386-only machines not supporting CR8 load/store
exiting]
Signed-off-by: Sheng Yang <sheng.yang@intel.com>
Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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This patch converts the vcpus array in "struct kvm" to a pointer
array, and changes the "vcpu_create" and "vcpu_setup" hooks into one
"vcpu_create" call which does the allocation and initialization of the
vcpu (calling back into the kvm_vcpu_init core helper).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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struct kvm_vcpu has vmx-specific members; remove them to a private structure.
Signed-off-by: Gregory Haskins <ghaskins@novell.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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load_pdptrs can be handed an invalid cr3, and it should not oops.
This can happen because we injected #gp in set_cr3() after we set
vcpu->cr3 to the invalid value, or from kvm_vcpu_ioctl_set_sregs(), or
memory configuration changes after the guest did set_cr3().
We should also copy the pdpte array once, before checking and
assigning, otherwise an SMP guest can potentially alter the values
between the check and the set.
Finally one nitpick: ret = 1 should be done as late as possible: this
allows GCC to check for unset "ret" should the function change in
future.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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The writeback fixes (02c03a326a5df825cc01de426f72e160db2b9538) let
some dead code in the cmpxchg instruction emulation. Remove it.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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This patch mainly imports some constants and rename two exist constants
of vmcs according to IA32 SDM.
It also adds two constants to indicate Lock bit and Enable bit in
MSR_IA32_FEATURE_CONTROL, and replace the hardcode _5_ with these two
bits.
Signed-off-by: Sheng Yang <sheng.yang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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gfn_to_page might sleep with swap support. Move it out of the kmap calls.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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vmx_cpu_run doesn't handle error correctly and kvm_mmu_reload might
sleep with mutex changes, so I move it above.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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Don't fall through and turn on PAE in this case.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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Right now, the bug is harmless as we never emulate one-byte 0xb6 or 0xb7.
But things may change.
Noted by the mysterious Gabriel C.
Signed-off-by: Avi Kivity <avi@qumranet.com>
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The writeback fixes (02c03a326a5df825cc01de426f72e160db2b9538) broke
cmov emulation. Fix.
Signed-off-by: Avi Kivity <avi@qumranet.com>
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Intel manual (and KVM definition) say the TPR is 4 bits wide. Also fix
CR8_RESEVED_BITS typo.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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Creating one's own BITMAP macro seems suboptimal: if we use manual
arithmetic in the one place exposed to userspace, we can use standard
macros elsewhere.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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On this machine (Intel), writing to the CR4 bits 0x00000800 and
0x00001000 cause a GPF. The Intel manual is a little unclear, but
AFIACT they're reserved, too.
Also fix spelling of CR4_RESEVED_BITS.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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The kernel now has asm/cpu-features.h: use those macros instead of inventing
our own.
Also spell out definition of CR3_RESEVED_BITS, fix spelling and
tighten it for the non-PAE case.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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The kernel now has asm/cpu-features.h: use those macros instead of
inventing our own.
Also spell out definition of CR0_RESEVED_BITS (no code change) and fix typo.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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Don't pre-declare hardware_disable: shuffle the reboot hook down.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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Speling error in comment.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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I have shied away from touching x86_emulate.c (it could definitely use
some love, but it is forked from the Xen code, and it would be more
productive to cross-merge fixes).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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Add string pio write support to support some version of Windows.
Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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This patch adds a `vcpu_id' field in `struct vcpu', so we can
differentiate BSP and APs without pointer comparison or arithmetic.
Signed-off-by: Qing He <qing.he@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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*nopage() in kvm_main.c should only store the type of mmap() fault if
the pointers are not NULL. This patch fixes the problem.
Signed-off-by: Nguyen Anh Quynh <aquynh@gmail.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: (119 commits)
[libata] struct pci_dev related cleanups
libata: use ata_exec_internal() for PMP register access
libata: implement ATA_PFLAG_RESETTING
libata: add @timeout to ata_exec_internal[_sg]()
ahci: fix notification handling
ahci: clean up PORT_IRQ_BAD_PMP enabling
ahci: kill leftover from enabling NCQ over PMP
libata: wrap schedule_timeout_uninterruptible() in loop
libata: skip suppress reporting if ATA_EHI_QUIET
libata: clear ehi description after initial host report
pata_jmicron: match vendor and class code only
libata: add ST9160821AS / 3.ALD to NCQ blacklist
pata_acpi: ACPI driver support
libata-core: Expose gtm methods for driver use
libata: add HDT722516DLA380 to NCQ blacklist
libata: blacklist NCQ on Seagate Barracuda ST380817AS
[libata] Turn on ACPI by default
libata_scsi: Fix ATAPI transfer lengths
libata: correct handling of SRST reset sequences
libata: Integrate ACPI-based PATA/SATA hotplug - version 5
...
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* remove pointless pci_dev_to_dev() wrapper. Just directly reference
the embedded struct device like everyone else does.
* pata_cs5520: delete cs5520_remove_one(), it was a duplicate of
ata_pci_remove_one()
* linux/libata.h: don't bother including linux/pci.h, we don't need it.
Simply declare 'struct pci_dev' and assume interested parties will
include the header, as they should be doing anyway.
* linux/libata.h: consolidate all CONFIG_PCI declarations into a
single location in the header.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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PMP registers used to be accessed with dedicated accessors ->pmp_read
and ->pmp_write. During reset, those callbacks are called with the
port frozen so they should be able to run without depending on
interrupt delivery. To achieve this, they were implemented polling.
However, as resetting the host port makes the PMP to isolate fan-out
ports until SError.X is cleared, resetting fan-out ports while port is
frozen doesn't buy much additional safety.
This patch updates libata PMP support such that PMP registers are
accessed using regular ata_exec_internal() mechanism and kills
->pmp_read/write() callbacks. The following changes are made.
* PMP access helpers - sata_pmp_read_init_tf(), sata_pmp_read_val(),
sata_pmp_write_init_tf() are folded into sata_pmp_read/write() which
are now standalone PMP register access functions.
* sata_pmp_read/write() returns err_mask instead of rc. This is
consistent with other functions which issue internal commands and
allows more detailed error reporting.
* ahci interrupt handler is modified to ignore BAD_PMP and
spurious/illegal completion IRQs while reset is in progress. These
conditions are expected during reset.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Implement ATA_PFLAG_RESETTING. This flag is set while reset is in
progress. It's set before prereset is called and cleared after reset
fails or postreset is finished.
This flag itself doesn't have any function. It will be used by LLDs
to tell whether reset is in progress if it needs to behave differently
during reset.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Add @timeout argument to ata_exec_internal[_sg](). If 0, default
timeout ata_probe_timeout is used.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Asynchronous notification on ICH9 didn't work because it didn't write
AN FIS into the RX area - it only updates SNotification. Also,
snooping SDB_FIS RX area is racy against further SDB FIS receptions.
Let sata_async_notification() determine using SNTF if it's available
and snoop RX area iff SNTF isn't available
Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Now that we have pp->intr_mask, move PORT_IRQ_BAD_PMP enabling to
ahci_pmp_attach/detach() where it belongs.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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ahci had problems with NCQ over PMP and NCQ used to be disabled while
PMP was attached. After fixing the problem, the temporary NCQ
disabling code wasn't removed completely. Kill the remaining piece.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Tasks in uninterruptible sleep might be woken up by unrelated events
and should check whether the condition it was waiting for has actually
triggered. Wrap schedule_timeout_uninterruptible() in loop to achieve
it.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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ATA_EHI_NO_AUTOPSY and ATA_EHI_QUIET are used during initial probing
to skip exception analysis and reporting. Usually, there's nothing to
report but on some allowed but rare corner cases (e.g. phy status
changed interrupt when IRQ is enabled on frozen port - this happens if
IRQ pending status isn't cleared in the IRQ router or controller)
exception messages get printed.
Skip reporting if ATA_EHI_QUIET is set.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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ehi description field is used to carry LLD specific controller
description. Sometimes, it's used without clearing before and LLD
description gets printed with exception information one more time.
Clear after printing.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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PATA part of all current JMB controllers behave the same way and
JMicron confirms that all future ones will stay compatible. Drop
device matching and match only vendor and class.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Ethan Hsiao <ethanhsiao@jmicron.com>
Cc: Justin Tsai <justin@jmicron.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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ST9160821AS / 3.ALD also does spurious NCQ completions. Disable NCQ.
Signed-off-by: Tejun Heo <teheo@suse.de>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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On a cable there may be
eighty wires or perhaps forty
and we learn about its type
In the world of ACPI
So we call the GTM
And we find the the timing rate
And we look through it to see
If eighty wire it must be
Timing lives in ACPI routines
ACPI routines, ACPI routines
Timing lives in ACPI routines
ACPI routes ACPI routines
And the drivers last you see
Picking up unknown pci ids
and the code begins to work
Timing lives in ACPI routines
ACPI routines, ACPI routines
Timing lives in ACPI routines
ACPI routes ACPI routines
[Full speed ahead, Mr Hacker, full speed ahead]
Full speed over here sir!
Checking Cable, checking cable
Aye aye, 80 wire,
Heaven heaven]
If we use ACPI (ACPI)
Every box (every box) has all we need (has all we need)
Cable type (cable type) and mode timing (mode timing)
In our ATA (in our ATA) subroutines (subroutines, ha ha)
Timing lives in ACPI routines
ACPI routines, ACPI routines
Timing lives in ACPI routines
ACPI routes ACPI routines
Timing lives in ACPI routines
ACPI routines, ACPI routines
Timing lives in ACPI routines
ACPI routes ACPI routines
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Talk to the dark side our driver has to, yes. Much misleading is the
data. Store it in a structure we do so that it may be parsed.
Signed-off-by: Alan Cox <alan@redhat.com>
--
Whats small, old and shouts phrases out of order across mountains ?
Yodla..
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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HDT722516DLA380 does spurious completion of NCQ commands. Blacklist
it.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Frans Pop <elendil@planet.nl>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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