On 05/31/2013 07:16 AM, Paolo Bonzini wrote:
So far, the size of all regions passed to listeners could fit in 64 bits,
because artificial regions (containers and aliases) are eliminated by
the memory core, leaving only device regions which have reasonable sizes
An IOMMU however cannot be
Il 06/06/2013 04:36, Alexey Kardashevskiy ha scritto:
diff --git a/hw/misc/vfio.c b/hw/misc/vfio.c
index 693a9ff..c89676b 100644
--- a/hw/misc/vfio.c
+++ b/hw/misc/vfio.c
@@ -1953,7 +1953,7 @@ static void vfio_listener_region_add(MemoryListener
*listener,
}
iova =
On 06/07/2013 11:09 AM, Paolo Bonzini wrote:
Il 06/06/2013 04:36, Alexey Kardashevskiy ha scritto:
diff --git a/hw/misc/vfio.c b/hw/misc/vfio.c
index 693a9ff..c89676b 100644
--- a/hw/misc/vfio.c
+++ b/hw/misc/vfio.c
@@ -1953,7 +1953,7 @@ static void vfio_listener_region_add(MemoryListener
Il 06/06/2013 21:23, Alexey Kardashevskiy ha scritto:
On 06/07/2013 11:09 AM, Paolo Bonzini wrote:
Il 06/06/2013 04:36, Alexey Kardashevskiy ha scritto:
diff --git a/hw/misc/vfio.c b/hw/misc/vfio.c
index 693a9ff..c89676b 100644
--- a/hw/misc/vfio.c
+++ b/hw/misc/vfio.c
@@ -1953,7 +1953,7 @@
Il 01/06/2013 00:18, Richard Henderson ha scritto:
On 05/30/2013 02:16 PM, Paolo Bonzini wrote:
+static inline Int128 int128_rshift(Int128 a, int n)
+{
+return (Int128) { (a.lo n) | (a.hi (64 - n)), (a.hi n) };
+}
Produces wrong results for n == 0, since (a.hi 64) is undefined.
On 31 May 2013 23:18, Richard Henderson r...@twiddle.net wrote:
On 05/30/2013 02:16 PM, Paolo Bonzini wrote:
+static inline Int128 int128_rshift(Int128 a, int n)
+{
+return (Int128) { (a.lo n) | (a.hi (64 - n)), (a.hi n) };
+}
Produces wrong results for n == 0, since (a.hi 64) is
Il 02/06/2013 16:18, Peter Maydell ha scritto:
On 31 May 2013 23:18, Richard Henderson r...@twiddle.net wrote:
On 05/30/2013 02:16 PM, Paolo Bonzini wrote:
+static inline Int128 int128_rshift(Int128 a, int n)
+{
+return (Int128) { (a.lo n) | (a.hi (64 - n)), (a.hi n) };
+}
Produces
On 2 June 2013 15:36, Paolo Bonzini pbonz...@redhat.com wrote:
This should work:
int64_t h;
if (!n) {
return a;
}
h = a.hi n;
This is undefined for n = 64.
if (n = 64) {
return (Int128) { h, h 63 };
} else {
return (Int128) { (a.lo n)
Il 02/06/2013 16:50, Peter Maydell ha scritto:
On 2 June 2013 15:36, Paolo Bonzini pbonz...@redhat.com wrote:
This should work:
int64_t h;
if (!n) {
return a;
}
h = a.hi n;
This is undefined for n = 64.
Yes, it has to be a.hi (n 63).
I would suggest looking
On 05/31/2013 07:16 AM, Paolo Bonzini wrote:
So far, the size of all regions passed to listeners could fit in 64 bits,
because artificial regions (containers and aliases) are eliminated by
the memory core, leaving only device regions which have reasonable sizes
An IOMMU however cannot be
Il 31/05/2013 08:56, Alexey Kardashevskiy ha scritto:
On 05/31/2013 07:16 AM, Paolo Bonzini wrote:
So far, the size of all regions passed to listeners could fit in 64 bits,
because artificial regions (containers and aliases) are eliminated by
the memory core, leaving only device regions which
On 05/30/2013 02:16 PM, Paolo Bonzini wrote:
+static inline Int128 int128_rshift(Int128 a, int n)
+{
+return (Int128) { (a.lo n) | (a.hi (64 - n)), (a.hi n) };
+}
Produces wrong results for n == 0, since (a.hi 64) is undefined.
r~
So far, the size of all regions passed to listeners could fit in 64 bits,
because artificial regions (containers and aliases) are eliminated by
the memory core, leaving only device regions which have reasonable sizes
An IOMMU however cannot be eliminated by the memory core, and may have
an
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