This patch adds a missing privop definition for ia64_trace_syscall
when CONFIG_XEN is unset. It also cleans up some inconsistent
spacing.
Signed-off-by: Aron Griffis <aron@hp.com>
This patch helps distro inclusion efforts by making it possible to
build a xen-patched Linux kernel with CONFIG_XEN disabled.
Signed-off-by: Aron Griffis <aron@hp.com>
Allow multiple-time mmap of the privcmd device. The old implemntation
doesn't allow multiple-time mmap for a same struct file_struct.
However xend or qemu does multiple-time mmap.
This patch affects only dom0 vp model. With this patch multiple domu can
boot simultaneously and vti domain can boot on vp model dom0.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
dom0 vp model: remove populate_physmap hypercall which becomes unnecesarry
because xenmem operation is fully supported by the previous patch.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
add trivial definitions, MULTI_UVMFLAGS_INDEX and MULTI_update_va_mapping()
to compile netback and netfront
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
xen/ia64 XENMEM_increase_reservation, XENMEM_decrease_reservation,
XENMEM_populate_reservation are broken.
work around for it.
This patch should be removed after those hypercalls are fixed.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
add defeinitions of arch_free_page()
work around for PG_foreign. xen/ia64 uses PG_arch1.
This work around sould be removed once PG_foreign is taken.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Current xen/ia64 grant table ignores some GNTMAP_xxx flags.
work around for that. This patch will be removed once the flags are supported.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
alloc_empty_foreign_map_page() in xenia64_init.c isn't used with
CONFIG_XEN_IA64_DOM0_VP enabled.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
In theory, after Guest executes "cover", incomplete frame changes to complete
frame. So Guest should set INCOMPL to 0 just after "cover". At least before
guest psr.ic and psr.i are turned on.
Previously, only when Guest executes "rfi", INCOMPL is set to 0. The window
between "cover" and "rfi" causes trouble in below scenario.
1. Application A calls system call.
2. In OS breaks handler entry, INCOMPL is 0. Due to its system call,
Linux kernel doesn't execute "cover".
3. Before returning to Application A, schedule happens, Application B begins
to run.
4. A TLB miss happens on the context of B, this may make INCOMPL 1, before
Returning to B, (that means "rfi" is not executed, and INCOMPL is still 1)
schedule happens again. A resumes to run with INCOMPL 1 (this is incorrect now).
5. As mentioned before, this is system call, "cover" is executed in
ia64_leave_kernel path. Because INCOMPL is 1, this "cover" is not actually
executed, but this "cover" should be executed.
5. Thus application A's frame is destroyed. Issue appears.
From: Anthony Xu <anthony.xu@intel.com>
Signed-off-by: Alex Williamson <alex.williamson@hp.com>
substitutions. This allows a Xen-patched Linux to build when /bin/sh
is a POSIX shell other than bash.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
When you generate non-linear skb's as netback does, it is up to you
to ensure that truesize reflects the size of paged part of the skb.
Otherwise socket memory accounting in Linux falls apart.
Thanks to the new check that David Miller added to TCP we were able
to catch this bug.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
- moves the TPM frontend completely into the char/tpm directory where it
is a plug-in to the generic TPM driver
- removes a now obsolete include file
- adapts part of the documentation
- fixes some locking problems where copy_to/from_user was called with
IRQs blocked
Signed-off-by: Stefan Berger <stefanb@us.ibm.com>
If a transaction end command fails, the semaphore which keeps track
of whether we're in a transaction or not was not getting updated.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
copy_from/to_user while preventing interrupts and fix allocation of
memory from within a task and other issues.
Signed-off-by: Stefan Berger <stefanb@us.ibm.com>
operation automatically gets you a fresh page at the same
pseudo-physical address as Keir suggested.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
