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PiperOrigin-RevId: 294300040
This commit is contained in:
Adin Scannell
2020-02-10 14:11:52 -08:00
committed by gVisor bot
parent 3e8b38d08b
commit 2889ffa84e
1 changed files with 4 additions and 3 deletions
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pkg/sentry/arch/arch_amd64.s
+4 -3
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@@ -26,10 +26,11 @@
//
// func initX86FPState(data *FloatingPointData, useXsave bool)
//
// We need to clear out and initialize an empty fp state area since the sentry
// may have left sensitive information in the floating point registers.
// We need to clear out and initialize an empty fp state area since the sentry,
// or any previous loader, may have left sensitive information in the floating
// point registers.
//
// Preconditions: data is zeroed
// Preconditions: data is zeroed.
TEXT ·initX86FPState(SB), $24-16
// Save MXCSR (callee-save)
STMXCSR mxcsr-8(SP)