[Xen-changelog] [xen master] xen: arm: correctly write release target in smp_spin_table_cpu_up

[patchbot@xxxxxxx]

commit 5f979614eae087042f0283fa03186e97e5e04f70
Author:     Ian Campbell <ian.campbell@xxxxxxxxxx>
AuthorDate: Tue Jan 14 16:55:04 2014 +0000
Commit:     Ian Campbell <ian.campbell@xxxxxxxxxx>
CommitDate: Thu Mar 13 10:59:11 2014 +0000

    xen: arm: correctly write release target in smp_spin_table_cpu_up
    
    flush_xen_data_tlb_range_va() is clearly bogus since it flushes the tlb, not
    the data cache. Perhaps what was meant was flush_xen_dcache(), but the 
address
    was mapped with ioremap_nocache and hence isn't cached in the first place.
    Accesses should be via writeq though, so do that.
    
    Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
    Acked-by: Julien Grall <julien.grall@xxxxxxxxxx>
---
 xen/arch/arm/arm64/smpboot.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/xen/arch/arm/arm64/smpboot.c b/xen/arch/arm/arm64/smpboot.c
index 1287c72..9146476 100644
--- a/xen/arch/arm/arm64/smpboot.c
+++ b/xen/arch/arm/arm64/smpboot.c
@@ -32,8 +32,7 @@ static int __init smp_spin_table_cpu_up(int cpu)
         return -EFAULT;
     }
 
-    release[0] = __pa(init_secondary);
-    flush_xen_data_tlb_range_va((vaddr_t)release, sizeof(*release));
+    writeq(__pa(init_secondary), release);
 
     iounmap(release);
 
--
generated by git-patchbot for /home/xen/git/xen.git#master

_______________________________________________
Xen-changelog mailing list
Xen-changelog@xxxxxxxxxxxxx
http://lists.xensource.com/xen-changelog