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| author | Andrew Cooper <andrew.cooper3@citrix.com> | 2012-02-23 09:58:47 +0000 |
|---|---|---|
| committer | Andrew Cooper <andrew.cooper3@citrix.com> | 2012-02-23 09:58:47 +0000 |
| commit | 23c3c39665e641c17bc02a411e1a483554393610 (patch) | |
| tree | 774fe4a42bcfe64ab7e62abc849cc1be1b862713 /xen/include/asm-x86/io_apic.h | |
| parent | d77aed8fdabdf67f6af144d90ed791d56ec1b85f (diff) | |
| download | xen-23c3c39665e641c17bc02a411e1a483554393610.tar.gz xen-23c3c39665e641c17bc02a411e1a483554393610.tar.bz2 xen-23c3c39665e641c17bc02a411e1a483554393610.zip | |
IO-APIC: Prevent using EOI broadcast suppression if user specified ioapic_ack=new on the command line.
Currently, if EOI broadcast suppression is advertised on the BSP
LAPIC, Xen will discard any user specified option regarding IO-APIC
ack mode.
This patch introduces a check which prevents EOI Broadcast suppression
from forcing the IO-APIC ack mode to old if the user has explicitly
asked for the new ack mode on the command line.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Committed-by: Keir Fraser <keir@xen.org>
Diffstat (limited to 'xen/include/asm-x86/io_apic.h')
| -rw-r--r-- | xen/include/asm-x86/io_apic.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/xen/include/asm-x86/io_apic.h b/xen/include/asm-x86/io_apic.h index a6d16f6c25..cee283ebe7 100644 --- a/xen/include/asm-x86/io_apic.h +++ b/xen/include/asm-x86/io_apic.h @@ -180,6 +180,7 @@ static inline void io_apic_modify(unsigned int apic, unsigned int reg, unsigned /* 1 if "noapic" boot option passed */ extern bool_t skip_ioapic_setup; extern bool_t ioapic_ack_new; +extern bool_t ioapic_ack_forced; #ifdef CONFIG_ACPI_BOOT extern int io_apic_get_unique_id (int ioapic, int apic_id); |