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| author |   Roger Pau Monne <roger.pau@citrix.com> | 2018-06-08 10:40:38 +0200 |
|---|---|---|
| committer |   Juergen Gross <jgross@suse.com> | 2018-06-19 13:51:00 +0200 |
| commit | 1fe83888a2b776c204cb06629700adfb8e9cc123 (patch) | |
| tree | 3d7ad3e848fceb53b69bc727af09b03839520af0 /arch/x86 | |
| parent | xen/PVH: Make GDT selectors PVH-specific (diff) | |
| download | linux-dev-1fe83888a2b776c204cb06629700adfb8e9cc123.tar.xz linux-dev-1fe83888a2b776c204cb06629700adfb8e9cc123.zip | |
xen: share start flags between PV and PVH
Use a global variable to store the start flags for both PV and PVH.
This allows the xen_initial_domain macro to work properly on PVH.
Note that ARM is also switched to use the new variable.
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/xen/enlighten.c | 7 | ||||
| -rw-r--r-- | arch/x86/xen/enlighten_pv.c | 1 | ||||
| -rw-r--r-- | arch/x86/xen/enlighten_pvh.c | 1 |
3 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index c9081c6671f0..3b5318505c69 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -65,6 +65,13 @@ __read_mostly int xen_have_vector_callback; EXPORT_SYMBOL_GPL(xen_have_vector_callback); /* + * NB: needs to live in .data because it's used by xen_prepare_pvh which runs + * before clearing the bss. + */ +uint32_t xen_start_flags __attribute__((section(".data"))) = 0; +EXPORT_SYMBOL(xen_start_flags); + +/* * Point at some empty memory to start with. We map the real shared_info * page as soon as fixmap is up and running. */ diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c index 357969a3697c..8d4e2e1ae60b 100644 --- a/arch/x86/xen/enlighten_pv.c +++ b/arch/x86/xen/enlighten_pv.c @@ -1203,6 +1203,7 @@ asmlinkage __visible void __init xen_start_kernel(void) return; xen_domain_type = XEN_PV_DOMAIN; + xen_start_flags = xen_start_info->flags; xen_setup_features(); diff --git a/arch/x86/xen/enlighten_pvh.c b/arch/x86/xen/enlighten_pvh.c index aa1c6a6831a9..c85d1a88f476 100644 --- a/arch/x86/xen/enlighten_pvh.c +++ b/arch/x86/xen/enlighten_pvh.c @@ -97,6 +97,7 @@ void __init xen_prepare_pvh(void) } xen_pvh = 1; + xen_start_flags = pvh_start_info.flags; msr = cpuid_ebx(xen_cpuid_base() + 2); pfn = __pa(hypercall_page); |