Hi. This patchset implements ia64/xen domU support based on
ia64/pv_ops frame work which was sent as another patchest.
Changes from take 5 are rebased to Linux 2.6.26-rc3,
bug fix ivt.S paravirtualization and multi entry point support.
I believe these patches can be applied to the linux ia64 repository.
This patchset does the followings.
- Some preparation work. Mainly importing header files to define
related structures.
- Then, define functions related to hypercall which is the way to
communicate with Xen hypervisor.
- Add some helper functions which is necessary to utilize
xen arch generic portion.
- Next implements the xen instance of pv_ops introducing
pv_info, pv_init_ops, pv_cpu_ops and its assembler counter part,
pv_iosapic_ops, pv_irq_ops and, pv_time_ops step by step.
- Introduce xen machine vector to describe xen platform.
By using machine vector, xen domU implementation can be simplified.
- Lastly update Kconfig to allow paravirtualization support and
xen domU support to compile.
The working full source is available from
http://people.valinux.co.jp/~yamahata/xen-ia64/linux-2.6-xen-ia64.git/
branch: xen-ia64-2008may19
At this phase, we don't address the following issues.
Those will be addressed after the first merge.
- optimization by binary patch
In fact, we had the patch to do that, but we intentionally dropped
for patch size/readability/cleanness.
- freeing the unused pages, i.e. pages for unused ivt.S.
Changes from take 5:
- rebased to Linux 2.6.26-rc3
- fix ivt.S paravirtualization.
One instruction was wrongly paravirtualized.
It wasn't revealed with Xen HVM domain so far, but with real hw
- multi entry point support.
- revised changelog to add CCs.
Changes from take 4:
- fix synch bit ops definitions to prevent accidental namespace clashes.
- rebased and fixed breakages due to the upstream change.
Changes from take 3:
- split the patch set into pv_op part and xen domU part.
- many clean ups.
- introduced pv_ops: pv_cpu_ops and pv_time_ops.
Changes from take 2:
- many clean ups following to comments.
- clean up:assembly instruction macro.
- introduced pv_ops: pv_info, pv_init_ops, pv_iosapic_ops, pv_irq_ops.
Changes from take 1:
Single IVT source code. compile multitimes using assembler macros.
thanks,
Diffstat:
arch/ia64/Kconfig | 32 +++
arch/ia64/Makefile | 2 +
arch/ia64/kernel/acpi.c | 5 +
arch/ia64/kernel/asm-offsets.c | 27 ++
arch/ia64/kernel/nr-irqs.c | 1 +
arch/ia64/xen/Kconfig | 21 ++
arch/ia64/xen/Makefile | 22 ++
arch/ia64/xen/grant-table.c | 155 +++++++++++
arch/ia64/xen/hypercall.S | 91 +++++++
arch/ia64/xen/hypervisor.c | 96 +++++++
arch/ia64/xen/irq_xen.c | 422 ++++++++++++++++++++++++++++++
arch/ia64/xen/irq_xen.h | 34 +++
arch/ia64/xen/machvec.c | 4 +
arch/ia64/xen/time.c | 165 ++++++++++++
arch/ia64/xen/time.h | 23 ++
arch/ia64/xen/xcom_hcall.c | 424 ++++++++++++++++++++++++++++++
arch/ia64/xen/xen_pv_ops.c | 362 ++++++++++++++++++++++++++
arch/ia64/xen/xencomm.c | 95 +++++++
arch/ia64/xen/xenivt.S | 57 ++++
arch/ia64/xen/xensetup.S | 83 ++++++
include/asm-ia64/machvec.h | 2 +
include/asm-ia64/machvec_xen.h | 22 ++
include/asm-ia64/meminit.h | 3 +-
include/asm-ia64/sync_bitops.h | 57 ++++
include/asm-ia64/xen/events.h | 50 ++++
include/asm-ia64/xen/grant_table.h | 29 ++
include/asm-ia64/xen/hypercall.h | 263 +++++++++++++++++++
include/asm-ia64/xen/hypervisor.h | 72 +++++
include/asm-ia64/xen/inst.h | 501 ++++++++++++++++++++++++++++++++++++
include/asm-ia64/xen/interface.h | 320 +++++++++++++++++++++++
include/asm-ia64/xen/irq.h | 44 ++++
include/asm-ia64/xen/minstate.h | 133 ++++++++++
include/asm-ia64/xen/page.h | 65 +++++
include/asm-ia64/xen/privop.h | 129 +++++++++
include/asm-ia64/xen/xcom_hcall.h | 51 ++++
include/asm-ia64/xen/xencomm.h | 33 +++
36 files changed, 3894 insertions(+), 1 deletions(-)
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