target-i386: Enabling IA32_TSC_ADJUST for QEMU KVM guest VMs

CPUID.7.0.EBX[1]=1 indicates IA32_TSC_ADJUST MSR 0x3b is supported

Basic design is to emulate the MSR by allowing reads and writes to the
hypervisor vcpu specific locations to store the value of the emulated MSRs.
In this way the IA32_TSC_ADJUST value will be included in all reads to
the TSC MSR whether through rdmsr or rdtsc.

As this is a new MSR that the guest may access and modify its value needs
to be migrated along with the other MRSs. The changes here are specifically
for recognizing when IA32_TSC_ADJUST is enabled in CPUID and code added
for migrating its value.

Signed-off-by: Will Auld <will.auld@intel.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Update seabios to a810e4e72a0d42c7bc04eda57382f8e019add901

git shortlog:

Kevin O'Connor (6):
      floppy: Minor - reduce handle_0e code size when CONFIG_FLOPPY is disabled.
      vga: Minor comment spelling fix.
      Don't recursively evaluate CFLAGS variables.
      Don't use gcc's -combine option.
      Add compile checking phase to build.
      acpi: Use prt_slot() macro to describe irq pins of first PCI device.

Laszlo Ersek (1):
      maininit(): print machine UUID under seabios version message

Paolo Bonzini (1):
      acpi: reintroduce LNKS

Paolo's patch fixes the FreeBSD boot failure.

Cc: qemu-stable@nongnu.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
virtio: make bindings typesafe

Move bindings from opaque to DeviceState.
This gives us better type safety with no performance cost.
Add macros to make future QOM work easier.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
qemu-kvm/pci-assign: 64 bits bar emulation

Enable 64 bits bar emulation.

Test pass with the current seabios which already support 64bit pci bars.

Signed-off-by: Xudong Hao <xudong.hao@intel.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
pcie: Fix bug in pcie_ext_cap_set_next

Upper 16 bits of the PCIe Extended Capability Header was truncated during update,
also breaking pcie_add_capability.

Signed-off-by: Knut Omang <knut.omang@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
msi: add API to get notified about pending bit poll

Update all users.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
msix: expose access to masked/pending state

For use by poll handler.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
virtio-pci: don't poll masked vectors

At the moment, when irqfd is in use but a vector is masked,
qemu will poll it and handle vector masks in userspace.
Since almost no one ever looks at the pending bits,
it is better to defer this until pending bits
are actually read.
Implement this optimization using the new poll notifier.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Merge remote-tracking branch 'kraxel/seabios-a810e4e' into staging

* kraxel/seabios-a810e4e:
  Update seabios to a810e4e72a0d42c7bc04eda57382f8e019add901

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Merge remote-tracking branch 'mst/tags/for_anthony' into staging

pci,virtio

This optimizes MSIX handling in virtio-pci.
Also included is pci express capability bugfix.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

* mst/tags/for_anthony:
  virtio-pci: don't poll masked vectors
  msix: expose access to masked/pending state
  msi: add API to get notified about pending bit poll
  pcie: Fix bug in pcie_ext_cap_set_next
  virtio: make bindings typesafe
Merge remote-tracking branch 'qemu-kvm/uq/master' into staging

* qemu-kvm/uq/master:
  qemu-kvm/pci-assign: 64 bits bar emulation
  target-i386: Enabling IA32_TSC_ADJUST for QEMU KVM guest VMs

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
tcg: Remove unneeded assertion

Commit 7f6f0ae5b95adfa76e10eabe2c34424a955fd10c added two assertions.

One of these assertions is not needed:
The pointer ts is never NULL because it is initialized with the
address of an array element.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>