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authorAdin Scannell <ascannell@google.com>2020-02-10 14:09:14 -0800
committergVisor bot <gvisor-bot@google.com>2020-02-10 14:11:52 -0800
commit2889ffa84ec4737b651b14c3ce019c5005d0dd9c (patch)
tree1a7b3cbeada576dd707708384e9a9ce5a0494d92 /pkg/sentry
parent3e8b38d08bbe200a11909bc268e66e4ee1d27d79 (diff)
Add context to note.
PiperOrigin-RevId: 294300040
Diffstat (limited to 'pkg/sentry')
-rw-r--r--pkg/sentry/arch/arch_amd64.s7
1 files changed, 4 insertions, 3 deletions
diff --git a/pkg/sentry/arch/arch_amd64.s b/pkg/sentry/arch/arch_amd64.s
index bd61402cf..6c10336e7 100644
--- a/pkg/sentry/arch/arch_amd64.s
+++ b/pkg/sentry/arch/arch_amd64.s
@@ -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)