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author | Jason Gunthorpe | 2018-08-16 22:13:03 +0200 |
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committer | Jason Gunthorpe | 2018-08-16 22:21:29 +0200 |
commit | 0a3173a5f09bc58a3638ecfd0a80bdbae55e123c (patch) | |
tree | d6c0bc84863cca54dfbde3b7463e5d49c82af9f1 /arch/x86/xen/enlighten_pv.c | |
parent | Revert "net/smc: Replace ib_query_gid with rdma_get_gid_attr" (diff) | |
parent | Merge tag 'for-linus-4.19-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/... (diff) | |
download | kernel-qcow2-linux-0a3173a5f09bc58a3638ecfd0a80bdbae55e123c.tar.gz kernel-qcow2-linux-0a3173a5f09bc58a3638ecfd0a80bdbae55e123c.tar.xz kernel-qcow2-linux-0a3173a5f09bc58a3638ecfd0a80bdbae55e123c.zip |
Merge branch 'linus/master' into rdma.git for-next
rdma.git merge resolution for the 4.19 merge window
Conflicts:
drivers/infiniband/core/rdma_core.c
- Use the rdma code and revise with the new spelling for
atomic_fetch_add_unless
drivers/nvme/host/rdma.c
- Replace max_sge with max_send_sge in new blk code
drivers/nvme/target/rdma.c
- Use the blk code and revise to use NULL for ib_post_recv when
appropriate
- Replace max_sge with max_recv_sge in new blk code
net/rds/ib_send.c
- Use the net code and revise to use NULL for ib_post_recv when
appropriate
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'arch/x86/xen/enlighten_pv.c')
-rw-r--r-- | arch/x86/xen/enlighten_pv.c | 54 |
1 files changed, 27 insertions, 27 deletions
diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c index 439a94bf89ad..ee3b00c7acda 100644 --- a/arch/x86/xen/enlighten_pv.c +++ b/arch/x86/xen/enlighten_pv.c @@ -119,6 +119,27 @@ static void __init xen_banner(void) version >> 16, version & 0xffff, extra.extraversion, xen_feature(XENFEAT_mmu_pt_update_preserve_ad) ? " (preserve-AD)" : ""); } + +static void __init xen_pv_init_platform(void) +{ + set_fixmap(FIX_PARAVIRT_BOOTMAP, xen_start_info->shared_info); + HYPERVISOR_shared_info = (void *)fix_to_virt(FIX_PARAVIRT_BOOTMAP); + + /* xen clock uses per-cpu vcpu_info, need to init it for boot cpu */ + xen_vcpu_info_reset(0); + + /* pvclock is in shared info area */ + xen_init_time_ops(); +} + +static void __init xen_pv_guest_late_init(void) +{ +#ifndef CONFIG_SMP + /* Setup shared vcpu info for non-smp configurations */ + xen_setup_vcpu_info_placement(); +#endif +} + /* Check if running on Xen version (major, minor) or later */ bool xen_running_on_version_or_later(unsigned int major, unsigned int minor) @@ -947,34 +968,8 @@ static void xen_write_msr(unsigned int msr, unsigned low, unsigned high) xen_write_msr_safe(msr, low, high); } -void xen_setup_shared_info(void) -{ - set_fixmap(FIX_PARAVIRT_BOOTMAP, xen_start_info->shared_info); - - HYPERVISOR_shared_info = - (struct shared_info *)fix_to_virt(FIX_PARAVIRT_BOOTMAP); - - xen_setup_mfn_list_list(); - - if (system_state == SYSTEM_BOOTING) { -#ifndef CONFIG_SMP - /* - * In UP this is as good a place as any to set up shared info. - * Limit this to boot only, at restore vcpu setup is done via - * xen_vcpu_restore(). - */ - xen_setup_vcpu_info_placement(); -#endif - /* - * Now that shared info is set up we can start using routines - * that point to pvclock area. - */ - xen_init_time_ops(); - } -} - /* This is called once we have the cpu_possible_mask */ -void __ref xen_setup_vcpu_info_placement(void) +void __init xen_setup_vcpu_info_placement(void) { int cpu; @@ -1228,6 +1223,8 @@ asmlinkage __visible void __init xen_start_kernel(void) x86_init.irqs.intr_mode_init = x86_init_noop; x86_init.oem.arch_setup = xen_arch_setup; x86_init.oem.banner = xen_banner; + x86_init.hyper.init_platform = xen_pv_init_platform; + x86_init.hyper.guest_late_init = xen_pv_guest_late_init; /* * Set up some pagetable state before starting to set any ptes. @@ -1259,6 +1256,9 @@ asmlinkage __visible void __init xen_start_kernel(void) get_cpu_cap(&boot_cpu_data); x86_configure_nx(); + /* Determine virtual and physical address sizes */ + get_cpu_address_sizes(&boot_cpu_data); + /* Let's presume PV guests always boot on vCPU with id 0. */ per_cpu(xen_vcpu_id, 0) = 0; |