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    SubjectRe: [PATCH 00 of 55] xen64: implement 64-bit Xen support

    * Jeremy Fitzhardinge <jeremy@goop.org> wrote:

    > Hi Ingo,
    >
    > Here's the set of patches to implement 64-bit Xen support.
    >
    > The first part of the series is some more (fairly minor) x86 arch
    > updates which here missed in the previous series.

    thanks Jeremy, applied.

    Since they depend on the generic-ipi infrastructure changes, i've
    created a separate, new tip/xen-64bit branch. The tip/x86/xen-64bit got
    merged into tip/x86/core and thus is headed for upstream. I have added
    your patches to the new topic branch - see the shortlog further below.

    > Following that are the Xen-specific changes to implement 64-bit
    > support. It works fairly well, but I know of a couple of bugs:
    >
    > - 32-bit emulation doesn't work properly yet. Something goes wrong
    > with %gs, and a userspace %gs: reference segfaults.
    >
    > - It crashes when bringing up secondary CPUs under some combinations
    > of config. I think it isn't quite setting up all the CPU sibling
    > topology stuff for the various scheduler policies. It's trying to
    > set up the most simple of arrangements (every CPU is a singleton
    > with no shared cache or anything else). It was quite tricky to
    > arrange this...
    >
    > I hope to have followup patches to address both of these in the next
    > couple of days. I expect both fixes will be small.

    that's OK, it should only affect 64-bit Xen, correct?

    Right now we need to get the generic impact of these patches tested,
    fixes to xen64 functionality can be done later on in an add-on manner.

    Testing: i've done a trial merge of tip/xen-64bit to tip/master - not
    pushed out yet. If it holds up in testing i'll put the integration rule
    into tip/master.

    tip/xen-64bit (which i've just pushed out) can be cleanly git-merged
    into tip/master, so if you send updates then please send it against such
    a merged tree - even if tip/master does not have tip/xen-64bit yet.
    These patches will need at least half a day of testing before i can push
    them out.

    Ingo

    -------------------------->
    Eduardo Habkost (6):
    x86/paravirt: call paravirt_pagetable_setup_{start, done}
    pvops-64: call paravirt_post_allocator_init() on setup_arch()
    xen64: xen_write_idt_entry() and cvt_gate_to_trap()
    Xen64: HYPERVISOR_set_segment_base() implementation
    xen64: implement xen_load_gs_index()
    xen64: Clear %fs on xen_load_tls()

    Isaku Yamahata (2):
    xen-netfront: fix xennet_release_tx_bufs()
    xen: add xen_arch_resume()/xen_timer_resume hook for ia64 support

    Jeremy Fitzhardinge (47):
    x86_64: there's no need to preallocate level1_fixmap_pgt
    x86: clean up formatting of __switch_to
    x86: use __page_aligned_data/bss
    x86_64: adjust exception frame in ia32entry
    x86_64: unstatic get_local_pda
    xen: print backtrace on multicall failure
    xen: define set_pte from the outset
    xen64: define asm/xen/interface for 64-bit
    xen: make ELF notes work for 32 and 64 bit
    xen: fix 64-bit hypercall variants
    xen64: fix calls into hypercall page
    xen64: add extra pv_mmu_ops
    xen64: random ifdefs to mask out 32-bit only code
    xen64: get active_mm from the pda
    xen: move smp setup into smp.c
    x86_64: add workaround for no %gs-based percpu
    xen64: smp.c compile hacking
    xen64: add xen-head code to head_64.S
    xen64: add asm-offsets
    xen64: add 64-bit assembler
    xen64: use set_fixmap for shared_info structure
    xen: cpu_detect is 32-bit only
    xen64: add hypervisor callbacks for events, etc
    xen64: early mapping setup
    xen64: 64-bit starts using set_pte from very early
    xen64: map an initial chunk of physical memory
    xen32: create initial mappings like 64-bit
    xen: fix truncation of machine address
    xen64: use arbitrary_virt_to_machine for xen_set_pmd
    xen: set num_processors
    xen64: defer setting pagetable alloc/release ops
    xen: use set_pte_vaddr
    xen64: deal with extra words Xen pushes onto exception frames
    xen64: add pvop for swapgs
    xen64: register callbacks in arch-independent way
    xen64: add identity irq->vector map
    xen: rework pgd_walk to deal with 32/64 bit
    xen: make sure the kernel command line is right
    suspend, xen: enable PM_SLEEP for CONFIG_XEN
    xen64: implement failsafe callback
    xen64: implement 64-bit update_descriptor
    xen64: save lots of registers
    xen64: allocate and manage user pagetables
    xen64: set up syscall and sysenter entrypoints for 64-bit
    xen64: set up userspace syscall patch
    xen: implement Xen write_msr operation
    xen: update Kconfig to allow 64-bit Xen



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