Both BCD_TO_BIN(x) and BIN_TO_BCD(x) have an unexpected side-effect -
not only do they return the value as expected, they _modify_ their
argument in the process.
Let's play it safe and avoid these macros.
Signed-off-by: Russell King <[email protected]>
This patch has removed unused timer resource.
Moreover, the name of reserved resources ware changed.
Signed-off-by: Yoichi Yuasa <[email protected]>
Signed-off-by: Ralf Baechle <[email protected]>
If R4k counter was used for hpt_timer and interrupt source,
c0_hpt_timer_init() initializes the c0_compare register.
Signed-off-by: Atsushi Nemoto <[email protected]>
Signed-off-by: Ralf Baechle <[email protected]>
The generic rtc-ds1742 driver can be used for RBTX4927 and JMR3927
(with __swizzle_addr trick). This patch also removes MIPS local
DS1742 stuff.
Signed-off-by: Atsushi Nemoto <[email protected]>
Signed-off-by: Ralf Baechle <[email protected]>
Big endian RMs uses a different mc146818_decode_year than little endian RMs
Correct mc146818_decode_year for years before 2000
Signed-off-by: Thomas Bogendoerfer <[email protected]>
Signed-off-by: Ralf Baechle <[email protected]>
A bogus 'return r' can cause an otherwise successful module load to fail.
This both denies users the use of kvm, and it also denies them the use of
their machine, as it leaves a filesystem registered with its callbacks
pointing into now-freed module memory.
Fix by returning a zero like a good module.
Thanks to Richard Lucassen <[email protected]> (?) for reporting
the problem and for providing access to a machine which exhibited it.
Signed-off-by: Avi Kivity <[email protected]>
Enabling dirty page logging is done using KVM_SET_MEMORY_REGION ioctl.
If the memory region already exists, we need to remove write accesses,
so writes will be caught, and dirty pages will be logged.
Signed-off-by: Uri Lublin <[email protected]>
Signed-off-by: Avi Kivity <[email protected]>
Since dirty_bitmap is an unsigned long array, the alignment and size need
to take that into account.
Signed-off-by: Uri Lublin <[email protected]>
Signed-off-by: Avi Kivity <[email protected]>
A few places where we modify guest memory fail to call mark_page_dirty(),
causing live migration to fail. This adds the missing calls.
Signed-off-by: Uri Lublin <[email protected]>
Signed-off-by: Avi Kivity <[email protected]>
Allocate a distinct inode for every vcpu in a VM. This has the following
benefits:
- the filp cachelines are no longer bounced when f_count is incremented on
every ioctl()
- the API and internal code are distinctly clearer; for example, on the
KVM_GET_REGS ioctl, there is no need to copy the vcpu number from
userspace and then copy the registers back; the vcpu identity is derived
from the fd used to make the call
Right now the performance benefits are completely theoretical since (a) we
don't support more than one vcpu per VM and (b) virtualization hardware
inefficiencies completely everwhelm any cacheline bouncing effects. But
both of these will change, and we need to prepare the API today.
Signed-off-by: Avi Kivity <[email protected]>
This reflects the changed scope, from device-wide to single vm (previously
every device open created a virtual machine).
Signed-off-by: Avi Kivity <[email protected]>
This avoids having filp->f_op and the corresponding inode->i_fop different,
which is a little unorthodox.
The ioctl list is split into two: global kvm ioctls and per-vm ioctls. A new
ioctl, KVM_CREATE_VM, is used to create VMs and return the VM fd.
Signed-off-by: Avi Kivity <[email protected]>
The kvmfs inodes will represent virtual machines and vcpus, as necessary,
reducing cacheline bouncing due to inodes and filps being shared.
Signed-off-by: Avi Kivity <[email protected]>
This patch changes the SVM code to intercept SMIs and handle it
outside the guest.
Signed-off-by: Joerg Roedel <[email protected]>
Signed-off-by: Avi Kivity <[email protected]>
This adds a special MSR based hypercall API to KVM. This is to be
used by paravirtual kernels and virtual drivers.
Signed-off-by: Ingo Molnar <[email protected]>
Signed-off-by: Avi Kivity <[email protected]>
Besides using an established api, this allows using kvm in older kernels.
Signed-off-by: Markus Rechberger <[email protected]>
Signed-off-by: Avi Kivity <[email protected]>
The whole thing is rotten, but this allows vmx to boot with the guest reboot
fix.
Signed-off-by: Markus Rechberger <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
Signed-off-by: Avi Kivity <[email protected]>
We fail to mark a page dirty in three cases:
- setting the accessed bit in a pte
- setting the dirty bit in a pte
- emulating a write into a pagetable
This fix adds the missing cases.
Signed-off-by: Avi Kivity <[email protected]>
Legacy IDE VLB host drivers didn't check for "probe" options when compiled
as modules, which was obviously wrong as we don't want module to poke at
random I/O ports by simply loading it. Fix it by adding "probe" module param
to legacy IDE VLB host drivers.
v2:
* don't obsolete old "ide0=dtc2278/ht6560b/qd65xx/ali14xx/umc8672"
IDE driver options yet (per Alan Cox's request) and enhance documentation
Signed-off-by: Bartlomiej Zolnierkiewicz <[email protected]>
Remove
* "hdx=serialize"
* "idex=noautotune"
* "idex=autotune"
kernel params, they have been obsoleted for ages.
"idex=serialize", "hdx=noautotune" and "hdx=autotune" are still available
so there is no funcionality loss caused by this patch.
v2:
* fix CONFIG_BLK_DEV_4DRIVES=y build broken by version 1 of the patch
[ /me wearing brown paper bag ]
Signed-off-by: Bartlomiej Zolnierkiewicz <[email protected]>
On Tuesday 27 February 2007, Akira Iguchi wrote:
>
> But since I sent the first patch, I found a bug for checking DMA IRQ status.
> (http://www.spinics.net/lists/linux-ide/msg06903.html)
> Then I sent the fixed patch for libata only. So my drivers/ide patch
> still has same bug and I want to fix it, too.
>
> The following patch fixes this bug. Please apply this patch.
From: Akira Iguchi <[email protected]>
Signed-off-by: Bartlomiej Zolnierkiewicz <[email protected]>
