diff options
Diffstat (limited to 'pkg/sentry')
| -rw-r--r-- | pkg/sentry/platform/ring0/kernel_amd64.go | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/pkg/sentry/platform/ring0/kernel_amd64.go b/pkg/sentry/platform/ring0/kernel_amd64.go index 9e8c56a54..5ed4342dd 100644 --- a/pkg/sentry/platform/ring0/kernel_amd64.go +++ b/pkg/sentry/platform/ring0/kernel_amd64.go @@ -27,9 +27,15 @@ func (k *Kernel) init(opts KernelOpts) { // Setup the IDT, which is uniform. for v, handler := range handlers { + // Allow Breakpoint and Overflow to be called from all + // privilege levels. + dpl := 0 + if v == Breakpoint || v == Overflow { + dpl = 3 + } // Note that we set all traps to use the interrupt stack, this // is defined below when setting up the TSS. - k.globalIDT[v].setInterrupt(Kcode, uint64(kernelFunc(handler)), 0 /* dpl */, 1 /* ist */) + k.globalIDT[v].setInterrupt(Kcode, uint64(kernelFunc(handler)), dpl, 1 /* ist */) } } |