From d5b9c3c63986aa1f4ca84233afbccd9eeddfa16c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Wojciech=20Wo=C5=82oszyn?= Date: Tue, 2 Apr 2024 14:01:38 +0100 Subject: [PATCH] Update README.md Add APIC timer interval for i7-9750H --- README.md | 23 ++++++++++++----------- 1 file changed, 12 insertions(+), 11 deletions(-) diff --git a/README.md b/README.md index 2e0b8f1..1baee85 100644 --- a/README.md +++ b/README.md @@ -306,17 +306,18 @@ version of the processor when recent [transient-execution attack](https://transi in place to flush microarchitectural buffers on enclave entry/exit. Some different microcode versions are provided for reference in the table below. -| Model name | CPU | Base frequency | ucode (date) | APIC timer interval | -| ------------- | ------------------------------------------------------------------------------------------------------------------------------------ | -------------- | ----------------- | ------------------- | -| Skylake | [i7-6700](https://ark.intel.com/products/88196) | 3.4 GHz | ? | 19 | -| Skylake | [i7-6500U](https://ark.intel.com/products/88194) | 2.5 GHz | ? | 25 | -| Skylake | [i5-6200U](https://ark.intel.com/products/88193) | 2.3 GHz | ? | 28 | -| Kaby Lake R | [i7-8650U](https://ark.intel.com/products/124968) | 1.9 GHz | ? | 34 | -| Kaby Lake R | [i7-8650U](https://ark.intel.com/products/124968) | 1.9 GHz | 0xca (2019-10-03) | 54 | -| Coffee Lake R | [i7-9700](https://ark.intel.com/content/www/us/en/ark/products/191792/intel-core-i79700-processor-12m-cache-up-to-4-70-ghz.html) | 3 GHz | 0xf4 (2022-07-31) | 26 | -| Coffee Lake R | [i9-9900K](https://ark.intel.com/products/186605) | 3.6 GHz | ? | 21 | -| Ice Lake | [i5-1035G1](https://ark.intel.com/content/www/us/en/ark/products/196603/intel-core-i5-1035g1-processor-6m-cache-up-to-3-60-ghz.html) | 1.00 GHz | 0x32 (2019-07-05) | 135 | -| Ice Lake | [i5-1035G1](https://ark.intel.com/content/www/us/en/ark/products/196603/intel-core-i5-1035g1-processor-6m-cache-up-to-3-60-ghz.html) | 1.00 GHz | 0xb0 (2022-03-09) | 255 | +| Model name | CPU | Base frequency | ucode (date) | APIC timer interval | +| ------------- | ------------------------------------------------------------------------------------------------------------------------------------ | -------------- | ----------------- | ------------------- | +| Skylake | [i7-6700](https://ark.intel.com/products/88196) | 3.4 GHz | ? | 19 | +| Skylake | [i7-6500U](https://ark.intel.com/products/88194) | 2.5 GHz | ? | 25 | +| Skylake | [i5-6200U](https://ark.intel.com/products/88193) | 2.3 GHz | ? | 28 | +| Kaby Lake R | [i7-8650U](https://ark.intel.com/products/124968) | 1.9 GHz | ? | 34 | +| Kaby Lake R | [i7-8650U](https://ark.intel.com/products/124968) | 1.9 GHz | 0xca (2019-10-03) | 54 | +| Coffee Lake R | [i7-9700](https://ark.intel.com/content/www/us/en/ark/products/191792/intel-core-i79700-processor-12m-cache-up-to-4-70-ghz.html) | 3 GHz | 0xf4 (2022-07-31) | 26 | +| Coffee Lake R | [i9-9900K](https://ark.intel.com/products/186605) | 3.6 GHz | ? | 21 | +| Coffee Lake HR | [i7-9750H](https://ark.intel.com/content/www/us/en/ark/products/191045/intel-core-i7-9750h-processor-12m-cache-up-to-4-50-ghz.html) | 2.6 GHz | 0xf4 (2023-02-23) | 37 | +| Ice Lake | [i5-1035G1](https://ark.intel.com/content/www/us/en/ark/products/196603/intel-core-i5-1035g1-processor-6m-cache-up-to-3-60-ghz.html) | 1.00 GHz | 0x32 (2019-07-05) | 135 | +| Ice Lake | [i5-1035G1](https://ark.intel.com/content/www/us/en/ark/products/196603/intel-core-i5-1035g1-processor-6m-cache-up-to-3-60-ghz.html) | 1.00 GHz | 0xb0 (2022-03-09) | 255 | **Note (calibration).** Currently, the easiest way to configure a reliable timer interval is to