14 Dec
2023
14 Dec
'23
2:20 p.m.
On Thu, 2023-12-14 at 14:00 +0000, David Woodhouse wrote:
+ if (IS_ENABLED(CONFIG_64BIT) && kvm->arch.xen.long_mode) { + struct vcpu_info *vcpu_info = gpc->khva; + u32 port_word_bit = port / 32;
Shouldn't that one be /64, and the compat one be /32?
I think the reason the test failed to spot this for you is because...
#define EVTCHN_TEST1 15 #define EVTCHN_TEST2 66 #define EVTCHN_TIMER 13
... it doesn't actually use any port numbers where the bit# differs for 32-bit vs. 64-bit.
If you change EVTCHN_TIMER to something like 50, I bet it'll fail (as it should).