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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-22 12:55:17 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-22 12:55:17 -0700 |
| commit | 55fc733c7e1de05a03237d857f4fe6dcec52d8d9 (patch) | |
| tree | a3f5d48c02fc9d0cf569519e645709cac9bf8d1c /arch/x86 | |
| parent | b852495908cd1b02ad47672a83f622ad4264801b (diff) | |
| parent | e01dc539df3ada9061a1097224513236b5381349 (diff) | |
Merge tag 'for-linus-4.6-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from David Vrabel:
"Features and fixes for 4.6:
- Make earlyprintk=xen work for HVM guests
- Remove module support for things never built as modules"
* tag 'for-linus-4.6-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
drivers/xen: make platform-pci.c explicitly non-modular
drivers/xen: make sys-hypervisor.c explicitly non-modular
drivers/xen: make xenbus_dev_[front/back]end explicitly non-modular
drivers/xen: make [xen-]ballon explicitly non-modular
xen: audit usages of module.h ; remove unnecessary instances
xen/x86: Drop mode-selecting ifdefs in startup_xen()
xen/x86: Zero out .bss for PV guests
hvc_xen: make early_printk work with HVM guests
hvc_xen: fix xenboot for DomUs
hvc_xen: add earlycon support
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/xen/xen-head.S | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S index b65f59a358a2..de93b20fa0d2 100644 --- a/arch/x86/xen/xen-head.S +++ b/arch/x86/xen/xen-head.S @@ -38,13 +38,18 @@ __INIT ENTRY(startup_xen) cld -#ifdef CONFIG_X86_32 - mov %esi,xen_start_info - mov $init_thread_union+THREAD_SIZE,%esp -#else - mov %rsi,xen_start_info - mov $init_thread_union+THREAD_SIZE,%rsp -#endif + + /* Clear .bss */ + xor %eax,%eax + mov $__bss_start, %_ASM_DI + mov $__bss_stop, %_ASM_CX + sub %_ASM_DI, %_ASM_CX + shr $__ASM_SEL(2, 3), %_ASM_CX + rep __ASM_SIZE(stos) + + mov %_ASM_SI, xen_start_info + mov $init_thread_union+THREAD_SIZE, %_ASM_SP + jmp xen_start_kernel __FINIT |